I’m using a 4iiii single sided since 2019 and it still works brilliantly. I also had the oppertunity to test a watt-bike double sided to check if I was out of balance but actually my left leg stayed 2-3W higher than the right (not what I expected) so now I know. No need for a double sided. Extremely useful tool when doing structured workouts.
Including your review, I note others too really rate the Magene PM as being up in the league of the best. It's hard to go pass given its great price. I think a power meter is a must have, especially for improving or maintaining your riding ability. Great review, as expected. I would just say to anybody out there exploring power meters they can rely 100% on your advice.
Adding pedal power meters will not alter the Q-factor, but it may alter the stance width. The Favero Assioma ones, which I use, add just a little to the width. The first power meter I bought was a Stages Ultegra left crank arm one, which was reliable. I sold it, when I swapped to a Dura-Ace crankset (although I could actually have kept it). I then bought a PowerTap pedal-based system, which was truly terrible. I now have the Assioma Duo pedals on my CX bike and the Uno on my indoor bike - extremely reliable. Using a heart-rate monitor with a power meter is not just an excellent way of gauging your fitness, but also your health. You learn how to equate the two, knowing when you are in form and when you are not. Last summer (2022) I was producing good numbers; however, this summer I knew something was off, when my power output dropped for the same heart rate. A blood test revealed that I had coeliac disease and my iron, RBC and my hematocrit levels were dropping through the floor. I think, if you are serious about your fitness and health, then a power meter is a good investment.
Absolutely a heart rate monitor & cadence monitor, but there's no need for a power meter, for a but competitive cyclists. Indeed, most that have them have little clue how to use it properly. Most buy them because its the latest thing & keeping up with others. It's not the wise person's choice.
@@tman5634 I have never raced in my life, but I do like to compete against myself (if you know what I mean). I have used my power meters to improve and monitor my fitness over the years. I have a couple of books on how to train with power meters and have watched many YT videos also. My own target was to improve, not my power, but my V02Max - and, I believe, it worked. Being able to monitor my progress objectively is to me what having a power meter is mostly about. If you are not serious about your fitness - as most people aren't - then you will not need one.
You can customize the Garmin 530 screen similar to the Wahoo, with a bigger number for a particular sensor value if you change the layout. The downside is that you'll have fewer things displayed at once. Personally I like having two screens, one with the most important things (speed, cadence, time spent) and one with stuff that I don't always need (clock time, slope, average HR etc).
Megane make some great stuff 👌 - I've rode a Stages for yrs now and i mostly use it when I'm on the edge ie if I need to keep things sensible and not over push things and its a great pacing tool also. Not essential but they're handy at times and I mostly check figures over time on Strava etc.. it's a good price on Ali too 👍
Great info. I've never heard of this brand. I use a power meter and I can't imagine riding without one now. It helps a lot not only for training more efficiently but also to pace myself better on very long rides.
I have had my Magene PES crank with P505 power meter for about 2 months. Seems to work great! I used the Magene chain rings as my Ultegra rings were pretty worn out. They seem to shift fine. I ordered direct from China for about $370 US dollars. What a bargain!
If you do not have to spend one dime in R&D, if you do not respect any Patent, if you receive a refund by the State (the CCP) when selling at a loss, then yes, your product is a "bargain", and it allows Chinese companies to eliminate the companies that invented, designed, invested on that product. The CCP's tactic to subdue the world
Added bonus, the Magene crank is probably a lot less likely to break than the Shimano crank. My 9000 Dura-ace crank broke when I was climbing out of the saddle, came very close to crashing!
I sold my Pinnarello 4 series when the first hints of the crankset problems surfaced in the U.S. back in April this year as a precautionary measure . My cranks were in good order , though .
If you have more than one bike, and you'd like to do power analysis one more than one bike, get pedal-based meters. In about two minutes you can swap the pedals from any bike to any other bike. Try that with a crank-based meter.
Those cranks will likely outlast the Ultegra ones after the Shimano recall! They're forged and then drilled rather than bonded like the Ultegra and DA ones.
Steve , haven't watched your contributions for a while but I will resume watching . You don't elaborate too much like Adam from ZFC in Adelaide , which is good for some viewers . This is actually better for less technically minded people . Adam has his audience which are deeper thinkers that understand graphs and are wanting impartial product comparisons with maths involved .
0:06 hey, thats the first power meter i bought just last month from chain reaction, lol, was on the fence for such a long time but suddenly the price dropped from the usual 299USD to 277USD and i bit the bullet, thanks to free shipping and being lucky not getting charged of any import duty.
Domestically, p505 does not have a very good reputation in terms of long term data accuracy. It is cheap, especially if you are in China, but the accuracy do seems to drift overtime. Long term review might be needed.
Been using this for a few months, super easy to use with an ig630 bike computer. The data looks good but I have nothing to compare/calibrate with. I'm running it with some sram red 22 cranks.
@@stevenleffanue It's not to say I doubt the numbers, simply that I can't confirm them. Strava estimates my FTP somewhat lower using the resultant power but I think that's because alot of the power data is based on riding on bad roads where I'm often holding back because of cobbles/pot holes and dangerous junctions. When I look at strava segments where the roads are better my power is very close to what I do indoors which is effectively 'ideal' conditions for riding. My only real concern is that I assume the battery is non-replacable. assuming the battery looses 10% capacity a year then after 10 years that will be 200*0.9^10 approx 70 hours which will still be usable in many cases (perhaps not for long touring)
I now find that with the greater diversity of power meters available today , the challenge of deciding which one to use as they all have different advantages and disadvantages . Firmware updates don't always work as intended .
Thanks, expensive power meters have always put me off then I went for the IQ2 Kickstarter campaign... enough said about that. This looks like the one I'll finally go for!
Being a professional team mechanic of many years, Power Meters are a fantastic training aid for competitive racing cyclists, other than that, no other cyclists benefits from having one. Indeed having one when not beneficial can take away from the enjoyment of cycling. Enjoy cycling for the great sport it is, without having to concentrate on needless data, being swamped down on how to use it, get the best out of it etc.
Such a sweeping assertion. I can tell you it doesn't apply in my case. I enjoy a bike less without a power meter. But I push myself, and power and heart rate help me to do that without over-doing it at certain times. I just added a gravel bike to the collection, and it too will soon have a power meter.
@@CrabgrassFarmer It's a lifetime in the sport & what I've witnessed, firstly as a very competitive rider (albeit not that well known) & since as a mechanic to professionals & amateurs. These past 10years, marketing has played a huge part in parting cyclists with their money, more than ever before. Some things are beneficial, some are not, same are for sertain sectors in the sport, others are not. The thing with Power Meters, most people have been led astray thinking it'll make them a better rider...when infact it can also work in the opposite way, if not obtained for the right reasons, aims & time invested into it's benefits. Ask yourself... If there's world tour riders that don't use them, does the weekend rider need? Also, many top riders ditch them in races & go off feel. I'm for Power Meters, if used correctly & by those that would benefit. Otherwise I tell people to save their money (at my expense of a sale) & put it towards other items they would benefit more from. A true story here. A guy in his mid 50's who raced at a good level when in his 20's has started racing again. He doesn't use a power meter, he's old school. He's beating everyone else who's using one.
I bought the magene p505 3 months ago and it's already broken. Had to email 3 different people to get a answer out of them to see if they would cover it under warranty. They said they would but I would have to ship it to China. $40 than they would look it over and if they thought it needed replacing than they would send me a new one. Also I would pay shipping me another $40.
Magene is a well established Asian manufacturer for power meters and have distributors in many countries. If you have trouble with your Magene power meter you can now send it to your nearest distributor .
@stevenleffanue will that's not a option that they gave me. It's was the 1 person I email, response (Good day. Thanks for your feedback. About P505's problem, The attached video was received. Please contact the seller to get your warranty. Thanks for your patience. Best Regards Laura)
@davequale4763 Are you in the US? So they are telling you to (at your cost) ship the PM back to China and you will have to pay shipping for them to ship you back a new/replacement?
@@KiKi-gd5th yes. That's exactly what they told me. But they didn't even say they would replace it. They would look at it first. Than maybe replace it.
@@davequayle4763 man, that suck! What IF they denied the warranty and you are responsible for return shipping?! What a nightmare..... All these RUclips influencers get their (sometime free?) products to review and if things goes wrong they (manufacture) will reply immediately but to us average joe? Good luck or even getting ahold of them... Anyway keep us posted on your PM.
Anybody know if these will work with a shimano grx 810 chainrings? They are a 110 BCD Asymmetric 4-Bolt and the bolts go through the front of the spider. Failing that, it will have to be the assiomas.
Thanks! You have one of the first reviews of the Magene meter. How long have you had it? 2 year warranty is a fairly good sign but this is in the price range that most people won't want to be quality control.
You didn't show in the video the steps n7 & 8 of the instructions manual (torque tp 12Nm with a 10mm hex Key the left crank). Is it a step that you performed but omitted in the video or not?
I have never raced, I will never race. Since I bought power meter my rides changed COMPLETELY. Because - unlike in running - you simply cannot rely only on heart rate.
@@nordlicht4794 "changed completely" - when I go for ride that I know will be i.e. 5h or so, I simply keep my power in the limits I know are good for my endurance ride. And if I know today I will only spend 45-60min I keep my power accordingly as well. "cannot rely ONLY on heart rate" - very often heart rate is simply outcome of stress (too high vs the efforts) or overtraining (too low and not going in my example higher than 150 or so). I rely in 90% on power figures when I ride - not on heart rate (anymore). When I push for 30s and see the power figures, ALTHOUGH heart rate is NOT YET HIGH I know when to stop and relax (intervals or climbs or sprints). Simply (for me): power shows me my effort, heart rate shows the reaction of my body and that is not always the same.
Appreciate the info, but I'm just a bit weary of the Magene brand. I bought the new radar light. Worked absolutely perfect until a firmware update. It's now almost useless with false warnings. I bought the C406 Pro head unit. It works great, but battery life is starting to seriously diminish after only a few months of use. Warranty support from Magene has been nonexistent...will rarely even return an email. Think I'll pass on this brand.
Hey Mate, Big fan of your channel, i remember watching your videos on chain waxing which convinced me to go down that path and i have no regrets the only regret was why didnt i come across your video earlier 🤣🤣. Love your content and all the knowledge you share on your channel. Quick question have you tried comparing your Favero Assioma Duo with the spider based power meter. I recently bought a Giant TCR Advanced Pro 0 with Sram Froce 12 speed etap. The power halo that giant provided is consistently out by 20 - 30 watts. Giant have replaced the power meter under warranty but its still has the same issue. I was wondering if you could do a similar comparison. I have a kickr v5 where i compared the Favero with kickr and the difference was less than 4 watts. Now given the drive train losses the results are acceptable. Then i took my pedals on my bike and compared it to the power meter and the results are shocking its always about 20-30 watts higher than my pedals. Unfortunately i cant put my giant tcr on my Kickr coz i will have to buy a SRAM free hub and also a 12 speed cassette, its an expense that i am not wiling to make. I have my first 9speed aluminum road bike on my trainer which takes the indoor abuse. But yea i was just wondering if you could make a video on comparing power meter based on a source which you know is reliable and let us know the results 😊😊😊😊😊😊😊😊 Thanks Heaps in advanced love your channel
Did the preload bolt also require torque after applying required torque to single pinch bolt? I see that is metal and Magene indicated that it will require torque as well. Great review.
How mamy years the accu lasts ? Typically this is the "planned" end of live, as replacement is difficult. I have this problem on my smartwatch after 4 years which doesn´t last an more for more than 3h in recording mode. There is a DIY replacement accu available form 3rd party for 18€ but it requires skilled disassembly with heating up the glued case
One thing that needs to be noted is that the average Joe/Jane doesn't need a power meter and without guidance will not reap the true benefits of having one. It's better to measure other values and to use them.
Nice video and presentation. Inspired. I have old Gen 105 group set wanted to try this P505 and have a concern. Is my bike compatible? It has bottom shell 67mm deep and 78mm between cranks, assuming 24mm ø shaft, will replace from 5 to 4 bolt chainring’s. Your advice?
Yes will migrate to 4 bolt crank set. Is you sample has all these features? (1.5% power, cadence, L/R balance, Torque efficiency, Paddle Smoothness)? Seller offer price cut if we give up the last two features. Should we keep or drop it? Your advice? Thanks
@@stevenleffanuethanks to comment. Agreed. Digging deeper into fine lines reveals this. The factory offers a global version and a Lite version with two featured parameters removed at a reduced price exclusive to China market. Buyers of the Lite versions will pay extra $80 to activate those parameters.
Does anybody know of strain gauge metres existing in cranks to determine how circular your pedal motion is? I.e. perpendicular to the crank movement at all points of rotation. This has been an obsessive pondering of mine..
I still ride a ultegra 6700 with 3 chainrings. Would that work together ? Currently I have a left side Stages only for that reason. Running a powertap simultaneously I found that high power match well, but low power i.e. Zone 2 differ quite a bit likely due to unnoticable left/right imbalance at lower power.
The small amount of flexibility in the crank arms is compensated for in the power meter firmware. Also, stiffness of mid to high-end cranks is over-hyped. Unless you weigh 800 pounds, you are not flexing Ultegra, Chorus, Force, or the crank arms featured in this video, and anyone who says that they can feel the difference is either selling something, or has an overactive imagination. Besides, SRM uses a spider-based system and is the gold standard of accuracy by which all other power meters are measured.
@prestachuck2867 you haven't ridden very many cranks then😅 And you don't even have to ride them. FSA K-Force Lights for example are noodly. You can just push them sideways towards the chainstays to see it while you can't really move a 105 and up crankset. Rival cranks also have significant deflection but Force and Red do not.
@prestachuck2867 I'm not complaining about spider based power meters. I have 3 of them. I'm simply stating that the arms can flex independent of the spider with cranks that have separate spiders....power meter or not.
I would say yes. It will require someone who has time to fiddle around adapting it. You will need to attatch the third ring to the spider with the correct width spacers.
what bike computer do you prefer? My old one broke and now using a spare phone. I dont like it too expensive, but that whahoo looks mote readable than garmin. IGSport is cheaper, but its nice to use? thanks
Question: If you were installing new OSPW's, with 2 new pulleys would you degrease the pulley hubs and then apply your famous wax liquid formula ( wax & PTFE 10:1)????
I assume you're thinking of using the wax as a jockey wheel lubricant? I haven't done any testing for this thus recommend to use the lubricant that the manufacturer recommends. If your jockey wheels are ball bearing based definitely do not use wax as the lubricant.
Does anyone here know if it's OK to run a power meter like the Magene PES P505 on a fixed gear? I got one for my single speed, and that obviously works normal, but I'm worried about putting a fixed cog on it since the sensors might be damaged by being loaded in the opposite direction to which they were designed.
Hello Dr Oz: If a person changes their Shimano Ultegra chain and gets the new one waxed, do we have to also change a 10 year old 8000k existing cassette, never in the rain, never in the dirt ?
Does anyone have experience with Magene original 12-speed chainrings with Schimano ultegra 11-speed R8000 group? Or rather buy an 11-speed Ultegra chainring separately.
The issue with the Magene P505 Base: You can't buy replacement cranks and the direct mount is proprietary. Also the e-mail address of Magene is broken (sales@).
@@stevenleffanue That's not true. I've asked the official Magene Store. They are only selling QES cranks, no PES. PES only as bundle in the "P505 Base". Direct mount is the way to attach the spider to the spindle. The "P505 BASE" comes in a proprietary mount. It only fits the PES cranks. Only the more expensive "P505" (without the base) can be ordered to fit Rotor, SRAM etc.
@@stevenleffanue It's a pity. I'll probably buy the P505 Rotor and use the Rotor ALDHU cranks + spindle just to be able to source replacement cranks. I bought a used Verve Infocrank powermeter (dual sided crank based) but it snapped after only a couple of rides just when I accelerated after a red light. No injuries but the powermeter is dead and manufacturer says out of warranty. That's why I'm so picky. 🙂
The Ultegra crank is certainly not stronger than the PES. Shimano just initiated a huge recall of all newer Ultegra and Dura Ace cranks because they delaminate and break. It's all over the news at the moment
Was expecting a video on whether you should use it based on the title but it was more about on how to use it. Cycling is the only cyclic sport that widely uses a power meter, neither skiers, runners, swimmers, rowers use them. I have no doubt that any additional stats are good and can be helpful, but IMHO it is still not justified for an average person who rides for fitness and health.
Is it compatible with Shimano 2x12 groupset? Magene support is not very helpful, they do not respond to emails. They only replied on AliExpress, but I got the answer that Magene PES P505 Base is not compatible with the Yoeleo R12 frame 😂 so according to their support this video should never have been made 😂
@stevenleffanue One more question. Compatibility with Shimano 105 DI2 R7100. Sigeyi also has a crankset with a power meter, but they added a note in the description: "Compatibility: compatible with all 10-12s chainrings; this crank is not compatible with Shimano R7150 front derailleur." Maybe you know if Magene is compatible or not with this fron derailleur?
Hi Oz! When you calibrate this power meter on the app / head unit, what number do you get as a result? On mine I get as a result sometimes 9, sometimes 10. But I have no clue what that number means. Magene could not give a proper answer either.
@@stevenleffanue My other power meters (Assioma and BePRO) return 0 as a calibration result. This one, for whatever reason, does not. Magene confirmed it. But I want to know if 9 or 10 are the expected numbers.
@@stevenleffanue Although I still don't know what the "10" as a result means, at least it seems that this is the expected value. Found it hidden on this video: ruclips.net/video/x3tqvlVVVTQ/видео.html at 3:50
Running an older SRAM red I can’t justify the expense of new BB, crank arms and power meter. I’ll just rely on feel, cadence, heart rate and incline. Strava’s estimated power doesn’t seem to take the prevailing wind into account but it gives you some idea if you often ride the same route.
@@stevenleffanue Thanks for the reply. I live in Japan and it doesn’t seem to be distributed here. Not sure if I want to buy through Ali Express in case something goes wrong but will research some more.
The power estimation method you mention can be used with some Sigma Sport STS ALT - CAD computers as I have used these in conjunction with their optional heart rate monitor kit .
I just noticed this power meter registers left and right power when we paddling with only one paddle, by one leg or one hand. That means any up stroke drive on one side is recorded as power to the opposite side. Essentially it reads crank shaft torque and not individual crank arm torques. If I noticed this sooner I may fall for their other model that uses independent sensors. Hope this helps.
Can it be used with any Shimano speedset? A lot of meters seem to work only with specific speedsets. My bike came with Shimano Tiagra 3x10 speedset. Will 3 chainrings instead of 2 also fit (and will the meter still be accurate/consistent) ?
Can I just replace the 3 speed Tiagra crankset with the powermeter cranks with 2 chain rings included or more is needed? (I don't mind having one front chainring less)
why would most people be running Shimano? most of my riding friends run SRAM AXS of some sort..for this reason the Quark SRAM POwer Meter Spider is great...works with existing crank...nice and accurate and not that much more expensive than the Magene one and you dont need to toss the old crank arms either
@@JBR.1974 In Asia too, Shimano is much cheaper than SRAM. Also if you have BB86 you are better with a Shimano 24mm axle than a 29mm Dub. Bearing are too skinny on the Dub.
I have the best power meter known to mankind, it's compatible with all of my bikes and gives me 100% accurate feedback all of the time. Often, it is even able to predict the future power required for the next part of a ride if I request it to. It costs me nothing to buy nor maintain and is free to use. In fact most people already have one but don't realise they do and they seldom use it anyway. It's a piece of equipment you carry on every ride. If you still think you need to buy and install one, think again...😊
As a physiologist who teaches at a medical school and carries out research on visceral sensory systems, lives in a hot climate, and has seen fellow riders suffer badly on long rides because they went out of the gate too fast, I would say that the incorrect thing you wrote above is that your system gives you %100 accurate feedback all of the time.
@@stuartdryer1352 I get what you're saying but the feedback and knowledge is already there, it's the rider who thinks they're better than they are and doesn't pay attention to the indications that's the problem I think, not the absence of another expensive unnecessary piece of new tech giving those indications.
@markcarlton The problem is RPE becomes much less reliable at temperature extremes. Of course, a lot depends on the kind of riding you do, and what you are trying to get out of it.
@@stuartdryer1352yes, except I would contend that if your RPE is so bad that you don't even realise you're overexerting yourself then a power meter can't help you. If of course, as you say, you are riding to win a world championship then it might help a little, but only if you're getting the best medical and training advice as well - for the rest of us mere mortals they are simply another way of relieving us of more $$$.
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I’m using a 4iiii single sided since 2019 and it still works brilliantly. I also had the oppertunity to test a watt-bike double sided to check if I was out of balance but actually my left leg stayed 2-3W higher than the right (not what I expected) so now I know. No need for a double sided.
Extremely useful tool when doing structured workouts.
Including your review, I note others too really rate the Magene PM as being up in the league of the best. It's hard to go pass given its great price. I think a power meter is a must have, especially for improving or maintaining your riding ability.
Great review, as expected. I would just say to anybody out there exploring power meters they can rely 100% on your advice.
Adding pedal power meters will not alter the Q-factor, but it may alter the stance width. The Favero Assioma ones, which I use, add just a little to the width. The first power meter I bought was a Stages Ultegra left crank arm one, which was reliable. I sold it, when I swapped to a Dura-Ace crankset (although I could actually have kept it). I then bought a PowerTap pedal-based system, which was truly terrible. I now have the Assioma Duo pedals on my CX bike and the Uno on my indoor bike - extremely reliable.
Using a heart-rate monitor with a power meter is not just an excellent way of gauging your fitness, but also your health. You learn how to equate the two, knowing when you are in form and when you are not. Last summer (2022) I was producing good numbers; however, this summer I knew something was off, when my power output dropped for the same heart rate. A blood test revealed that I had coeliac disease and my iron, RBC and my hematocrit levels were dropping through the floor.
I think, if you are serious about your fitness and health, then a power meter is a good investment.
Thank you for relating your experience wabout heart rate co-responding to a health condition , very true 👍
Absolutely a heart rate monitor & cadence monitor, but there's no need for a power meter, for a but competitive cyclists.
Indeed, most that have them have little clue how to use it properly.
Most buy them because its the latest thing & keeping up with others.
It's not the wise person's choice.
@@tman5634 I used to share that mentality, before I bought one.
@@dpstrial
Are you racing at a high level?
@@tman5634 I have never raced in my life, but I do like to compete against myself (if you know what I mean). I have used my power meters to improve and monitor my fitness over the years. I have a couple of books on how to train with power meters and have watched many YT videos also. My own target was to improve, not my power, but my V02Max - and, I believe, it worked.
Being able to monitor my progress objectively is to me what having a power meter is mostly about. If you are not serious about your fitness - as most people aren't - then you will not need one.
You can customize the Garmin 530 screen similar to the Wahoo, with a bigger number for a particular sensor value if you change the layout. The downside is that you'll have fewer things displayed at once.
Personally I like having two screens, one with the most important things (speed, cadence, time spent) and one with stuff that I don't always need (clock time, slope, average HR etc).
No spider based power meter measures true L/R balance - it is all estimated from total power using an algorithm. You should really add that clarity.
This! Afaik gp llama didn’t mention it being double sided.
SRM uses this method and is still the gold standard by which all other power meters are measured.
Well after testing spider based to pedals the algorithms are well with in a 1%......your mileage my very, but I've tested it several time.
@@prestachuck2867 SRM is compared to nothing. Old tech for old timers.
@@punkandprovocation Grow up
Megane make some great stuff 👌 - I've rode a Stages for yrs now and i mostly use it when I'm on the edge ie if I need to keep things sensible and not over push things and its a great pacing tool also. Not essential but they're handy at times and I mostly check figures over time on Strava etc.. it's a good price on Ali too 👍
Great info. I've never heard of this brand. I use a power meter and I can't imagine riding without one now. It helps a lot not only for training more efficiently but also to pace myself better on very long rides.
Magene are the OE manufacturer for many wahoo products and other larger brands
Using the power meter plus a heart rate monitor your Garmin will give you training status which you can use to guide your training efforts.
I have had my Magene PES crank with P505 power meter for about 2 months. Seems to work great! I used the Magene chain rings as my Ultegra rings were pretty worn out. They seem to shift fine. I ordered direct from China for about $370 US dollars. What a bargain!
If you do not have to spend one dime in R&D, if you do not respect any Patent, if you receive a refund by the State (the CCP) when selling at a loss, then yes, your product is a "bargain", and it allows Chinese companies to eliminate the companies that invented, designed, invested on that product. The CCP's tactic to subdue the world
Ahh, that little thing is anti-jam, was wondering what's it... Thank you! Uncle Oz!
Added bonus, the Magene crank is probably a lot less likely to break than the Shimano crank. My 9000 Dura-ace crank broke when I was climbing out of the saddle, came very close to crashing!
Ties in with the breakages as reported on ABC - TV news .
I sold my Pinnarello 4 series when the first hints of the crankset problems surfaced in the U.S. back in April this year as a precautionary measure . My cranks were in good order , though .
Oz cycle you are right up there with Shane Miller GP Lama! 🎉
If you have more than one bike, and you'd like to do power analysis one more than one bike, get pedal-based meters. In about two minutes you can swap the pedals from any bike to any other bike. Try that with a crank-based meter.
Select 3 second power- it will give a steadier power meter readings.
True!
Those cranks will likely outlast the Ultegra ones after the Shimano recall! They're forged and then drilled rather than bonded like the Ultegra and DA ones.
I would tend to agree on that. I'm sure Shimano have addressed the problem with the latest 12speed cranksets tho.
Steve , haven't watched your contributions for a while but I will resume watching . You don't elaborate too much like Adam from ZFC in Adelaide , which is good for some viewers . This is actually better for less technically minded people . Adam has his audience which are deeper thinkers that understand graphs and are wanting impartial product comparisons with maths involved .
Missed your videos mate. Keep em coming
0:06 hey, thats the first power meter i bought just last month from chain reaction, lol, was on the fence for such a long time but suddenly the price dropped from the usual 299USD to 277USD and i bit the bullet, thanks to free shipping and being lucky not getting charged of any import duty.
Assioma Favero’s on Campagnolo Record 3yrs here. I would like a cheap spider PM for my SRAM Eagle MTB though.
Sadly none of them are GRX compatible afaik, unless I misread? I think they only have the road q-factor in there.
Domestically, p505 does not have a very good reputation in terms of long term data accuracy. It is cheap, especially if you are in China, but the accuracy do seems to drift overtime.
Long term review might be needed.
Will keep an eye on its accuracy over the years to come.
That's what I got told too. So I ended up with a Stage single sided one which cost double than this double side power meter...
Do you have any references?
Been using this for a few months, super easy to use with an ig630 bike computer. The data looks good but I have nothing to compare/calibrate with. I'm running it with some sram red 22 cranks.
It should be reading correctly. If you ride with someone else who has a power meter and is similar weight the figures will be close.
@@stevenleffanue It's not to say I doubt the numbers, simply that I can't confirm them.
Strava estimates my FTP somewhat lower using the resultant power but I think that's because alot of the power data is based on riding on bad roads where I'm often holding back because of cobbles/pot holes and dangerous junctions.
When I look at strava segments where the roads are better my power is very close to what I do indoors which is effectively 'ideal' conditions for riding.
My only real concern is that I assume the battery is non-replacable. assuming the battery looses 10% capacity a year then after 10 years that will be 200*0.9^10 approx 70 hours which will still be usable in many cases (perhaps not for long touring)
I now find that with the greater diversity of power meters available today , the challenge of deciding which one to use as they all have different advantages and disadvantages . Firmware updates don't always work as intended .
Thanks, expensive power meters have always put me off then I went for the IQ2
Kickstarter campaign... enough said about that.
This looks like the one I'll finally go for!
Great review! No fluff. 👏🏼👏🏼👏🏼
You made a perfect how to do video, thanks a lot
can't wait for the carbon version TED, but what to do on a gravel bike with bigger q factor?
Being a professional team mechanic of many years, Power Meters are a fantastic training aid for competitive racing cyclists, other than that, no other cyclists benefits from having one. Indeed having one when not beneficial can take away from the enjoyment of cycling.
Enjoy cycling for the great sport it is, without having to concentrate on needless data, being swamped down on how to use it, get the best out of it etc.
Such a sweeping assertion. I can tell you it doesn't apply in my case. I enjoy a bike less without a power meter. But I push myself, and power and heart rate help me to do that without over-doing it at certain times. I just added a gravel bike to the collection, and it too will soon have a power meter.
@@CrabgrassFarmer
It's a lifetime in the sport & what I've witnessed, firstly as a very competitive rider (albeit not that well known) & since as a mechanic to professionals & amateurs.
These past 10years, marketing has played a huge part in parting cyclists with their money, more than ever before.
Some things are beneficial, some are not, same are for sertain sectors in the sport, others are not.
The thing with Power Meters, most people have been led astray thinking it'll make them a better rider...when infact it can also work in the opposite way, if not obtained for the right reasons, aims & time invested into it's benefits.
Ask yourself...
If there's world tour riders that don't use them, does the weekend rider need?
Also, many top riders ditch them in races & go off feel.
I'm for Power Meters, if used correctly & by those that would benefit.
Otherwise I tell people to save their money (at my expense of a sale) & put it towards other items they would benefit more from.
A true story here.
A guy in his mid 50's who raced at a good level when in his 20's has started racing again.
He doesn't use a power meter, he's old school.
He's beating everyone else who's using one.
@@tman5634another analogy against PMs.... it might not be your cup of tea, but certainly for some others
I bought the magene p505 3 months ago and it's already broken. Had to email 3 different people to get a answer out of them to see if they would cover it under warranty. They said they would but I would have to ship it to China. $40 than they would look it over and if they thought it needed replacing than they would send me a new one. Also I would pay shipping me another $40.
Magene is a well established Asian manufacturer for power meters and have distributors in many countries. If you have trouble with your Magene power meter you can now send it to your nearest distributor .
@stevenleffanue will that's not a option that they gave me. It's was the 1 person I email, response (Good day. Thanks for your feedback.
About P505's problem,
The attached video was received. Please contact the seller to get your warranty.
Thanks for your patience.
Best Regards
Laura)
@davequale4763 Are you in the US? So they are telling you to (at your cost) ship the PM back to China and you will have to pay shipping for them to ship you back a new/replacement?
@@KiKi-gd5th yes. That's exactly what they told me. But they didn't even say they would replace it. They would look at it first. Than maybe replace it.
@@davequayle4763 man, that suck! What IF they denied the warranty and you are responsible for return shipping?! What a nightmare..... All these RUclips influencers get their (sometime free?) products to review and if things goes wrong they (manufacture) will reply immediately but to us average joe? Good luck or even getting ahold of them... Anyway keep us posted on your PM.
Thank you for your review. Maybe I missed it but I didnt get how the second side measures the power
The sensors are in the spider arms not crank arms...all pedalling force goes thru the spider.
Thank you, great video.
I have a power meter: my speedometer. On hills it correlates strongly with watts.
😅😅
Anybody know if these will work with a shimano grx 810 chainrings? They are a 110 BCD Asymmetric 4-Bolt and the bolts go through the front of the spider. Failing that, it will have to be the assiomas.
do you have 48-31t rings? i have those rings and i have the same question with you....
Thanks! You have one of the first reviews of the Magene meter. How long have you had it? 2 year warranty is a fairly good sign but this is in the price range that most people won't want to be quality control.
Been using it for 3 months now. It's not essential but interesting to compare figures with other riders in the bunch.
You didn't show in the video the steps n7 & 8 of the instructions manual (torque tp 12Nm with a 10mm hex Key the left crank). Is it a step that you performed but omitted in the video or not?
I have never raced, I will never race. Since I bought power meter my rides changed COMPLETELY. Because - unlike in running - you simply cannot rely only on heart rate.
can you elaborate on these two points you made ("changed completely" and "cannot rely only on heart rate")?
@@nordlicht4794 "changed completely" - when I go for ride that I know will be i.e. 5h or so, I simply keep my power in the limits I know are good for my endurance ride. And if I know today I will only spend 45-60min I keep my power accordingly as well.
"cannot rely ONLY on heart rate" - very often heart rate is simply outcome of stress (too high vs the efforts) or overtraining (too low and not going in my example higher than 150 or so). I rely in 90% on power figures when I ride - not on heart rate (anymore). When I push for 30s and see the power figures, ALTHOUGH heart rate is NOT YET HIGH I know when to stop and relax (intervals or climbs or sprints). Simply (for me): power shows me my effort, heart rate shows the reaction of my body and that is not always the same.
Thank you for another video that's wholesome!
Appreciate the info, but I'm just a bit weary of the Magene brand. I bought the new radar light. Worked absolutely perfect until a firmware update. It's now almost useless with false warnings. I bought the C406 Pro head unit. It works great, but battery life is starting to seriously diminish after only a few months of use. Warranty support from Magene has been nonexistent...will rarely even return an email. Think I'll pass on this brand.
Contact the Magene distributor in your country , they will help you out.
Hey Mate,
Big fan of your channel, i remember watching your videos on chain waxing which convinced me to go down that path and i have no regrets the only regret was why didnt i come across your video earlier 🤣🤣. Love your content and all the knowledge you share on your channel. Quick question have you tried comparing your Favero Assioma Duo with the spider based power meter. I recently bought a Giant TCR Advanced Pro 0 with Sram Froce 12 speed etap. The power halo that giant provided is consistently out by 20 - 30 watts. Giant have replaced the power meter under warranty but its still has the same issue. I was wondering if you could do a similar comparison.
I have a kickr v5 where i compared the Favero with kickr and the difference was less than 4 watts. Now given the drive train losses the results are acceptable. Then i took my pedals on my bike and compared it to the power meter and the results are shocking its always about 20-30 watts higher than my pedals. Unfortunately i cant put my giant tcr on my Kickr coz i will have to buy a SRAM free hub and also a 12 speed cassette, its an expense that i am not wiling to make. I have my first 9speed aluminum road bike on my trainer which takes the indoor abuse.
But yea i was just wondering if you could make a video on comparing power meter based on a source which you know is reliable and let us know the results 😊😊😊😊😊😊😊😊
Thanks Heaps in advanced love your channel
Did the preload bolt also require torque after applying required torque to single pinch bolt? I see that is metal and Magene indicated that it will require torque as well. Great review.
Preloaded is done before tightening the pinch bolt. Once pinchbolt is tight the preloaded can not be altered.
How mamy years the accu lasts ? Typically this is the "planned" end of live, as replacement is difficult. I have this problem on my smartwatch after 4 years which doesn´t last an more for more than 3h in recording mode. There is a DIY replacement accu available form 3rd party for 18€ but it requires skilled disassembly with heating up the glued case
That power meter is 1699 yuan in China. ~360 AUD or 1899 with the chainring.
Probably on Aliexpress?
@@stevenleffanue Taobao, there is no Aliexpress in China.
One thing that needs to be noted is that the average Joe/Jane doesn't need a power meter and without guidance will not reap the true benefits of having one. It's better to measure other values and to use them.
Magenes says it won't work with a T47 BB. Do you know why? They say the same for BB386, but it seems ok on one of my bikes with that BB.
I am very interested in the igsport computer and its mapping functionality
Nice video and presentation. Inspired.
I have old Gen 105 group set wanted to try this P505 and have a concern. Is my bike compatible? It has bottom shell 67mm deep and 78mm between cranks, assuming 24mm ø shaft, will replace from 5 to 4 bolt chainring’s. Your advice?
Sorry no. You will need to update your crankset to the 4 bolt style , then the power meter will fit.
Yes will migrate to 4 bolt crank set. Is you sample has all these features? (1.5% power, cadence, L/R balance, Torque efficiency, Paddle Smoothness)? Seller offer price cut if we give up the last two features. Should we keep or drop it? Your advice? Thanks
@philoso377 Basic power is plenty information to work with. Most riders don't know what to do with all the extra metrics anyhow.
@@stevenleffanuethanks to comment. Agreed. Digging deeper into fine lines reveals this. The factory offers a global version and a Lite version with two featured parameters removed at a reduced price exclusive to China market. Buyers of the Lite versions will pay extra $80 to activate those parameters.
Does anybody know of strain gauge metres existing in cranks to determine how circular your pedal motion is? I.e. perpendicular to the crank movement at all points of rotation. This has been an obsessive pondering of mine..
I still ride a ultegra 6700 with 3 chainrings. Would that work together ? Currently I have a left side Stages only for that reason.
Running a powertap simultaneously I found that high power match well, but low power i.e. Zone 2 differ quite a bit likely due to unnoticable left/right imbalance at lower power.
With spider power meters,the crank arm can flex independent of the spider and chainrings
The small amount of flexibility in the crank arms is compensated for in the power meter firmware.
Also, stiffness of mid to high-end cranks is over-hyped. Unless you weigh 800 pounds, you are not flexing Ultegra, Chorus, Force, or the crank arms featured in this video, and anyone who says that they can feel the difference is either selling something, or has an overactive imagination.
Besides, SRM uses a spider-based system and is the gold standard of accuracy by which all other power meters are measured.
@prestachuck2867 you haven't ridden very many cranks then😅 And you don't even have to ride them. FSA K-Force Lights for example are noodly. You can just push them sideways towards the chainstays to see it while you can't really move a 105 and up crankset. Rival cranks also have significant deflection but Force and Red do not.
@prestachuck2867 I'm not complaining about spider based power meters. I have 3 of them. I'm simply stating that the arms can flex independent of the spider with cranks that have separate spiders....power meter or not.
Good information! I ride a recumbent trike with a triple chain ring; is there a model that would work in this case?
I would say yes. It will require someone who has time to fiddle around adapting it. You will need to attatch the third ring to the spider with the correct width spacers.
what bike computer do you prefer? My old one broke and now using a spare phone. I dont like it too expensive, but that whahoo looks mote readable than garmin. IGSport is cheaper, but its nice to use? thanks
"Trimm lite" has everything most of us will ever use.
Question: If you were installing new OSPW's, with 2 new pulleys would you degrease the pulley hubs and then apply your famous wax liquid formula ( wax & PTFE 10:1)????
I assume you're thinking of using the wax as a jockey wheel lubricant? I haven't done any testing for this thus recommend to use the lubricant that the manufacturer recommends. If your jockey wheels are ball bearing based definitely do not use wax as the lubricant.
OK thanks
Does anyone here know if it's OK to run a power meter like the Magene PES P505 on a fixed gear? I got one for my single speed, and that obviously works normal, but I'm worried about putting a fixed cog on it since the sensors might be damaged by being loaded in the opposite direction to which they were designed.
Hello Dr Oz: If a person changes their Shimano Ultegra chain and gets the new one waxed, do we have to also change a 10 year old 8000k existing cassette, never in the rain, never in the dirt ?
If the new chain skips on any of the sprockets when pushing hard on the pedals , then yes , new cassette required.
ok thanks doctor oz ....
A #GlobalBakeryMap app would be #SWEET
Try Assioma DUO from Favero
Similar price but it’s integrated to the pedal. Best power meter I eve used.
Does anyone have experience with Magene original 12-speed chainrings with Schimano ultegra 11-speed R8000 group? Or rather buy an 11-speed Ultegra chainring separately.
I bought a used Infocrank dual sided crank powermeter and the drive side snapped under load within the first 20 rides. 😩
At least one other person on here in the comments had the same problem.
The issue with the Magene P505 Base: You can't buy replacement cranks and the direct mount is proprietary. Also the e-mail address of Magene is broken (sales@).
Yes you can buy the PES crank separately. Not sure what you mean by "direct mount" but they are same as Shimano or you can choose SRAM fitting.
@@stevenleffanue That's not true. I've asked the official Magene Store. They are only selling QES cranks, no PES. PES only as bundle in the "P505 Base". Direct mount is the way to attach the spider to the spindle. The "P505 BASE" comes in a proprietary mount. It only fits the PES cranks. Only the more expensive "P505" (without the base) can be ordered to fit Rotor, SRAM etc.
Sorry , yes you are correct , only the QED crank is separate.
@@stevenleffanue It's a pity. I'll probably buy the P505 Rotor and use the Rotor ALDHU cranks + spindle just to be able to source replacement cranks. I bought a used Verve Infocrank powermeter (dual sided crank based) but it snapped after only a couple of rides just when I accelerated after a red light. No injuries but the powermeter is dead and manufacturer says out of warranty. That's why I'm so picky. 🙂
My area in Singapore I am able to buy the power meter and crank separately. Without chain rings
I literally never tighten my pedals past 7nm. Square tapered crank arms? 700nm.
does zero cal actaully mean zero,i have the magene p325 CS kickstarter and zero cal =-30 consistently
Yes , with no forward pressure on the pedals it should reset to 0
Hello, is there any possibility of installing such a part on a CAMPAGNOLO Chorus crank?
powermetercity.com/faq/what-power-meter-can-i-use-for-my-campagnolo-crankset/
How does it compare with a cadence sensor? If they are comparable
Yes it has cadence.
@stevenleffanue not about this product. If you only have a cadence sensor, is it still worth changing to power meter?
Depends on your riding expectations. Used properly a power meter will play a part in your training program.
The Ultegra crank is certainly not stronger than the PES. Shimano just initiated a huge recall of all newer Ultegra and Dura Ace cranks because they delaminate and break. It's all over the news at the moment
i think he reported on this 2 years ago.
How come others are saying that their left crankarm comes loose? Have you ever experienced that?
No. Maybe they didn't tighten the clamp bolt tight enough...12nm.
Was expecting a video on whether you should use it based on the title but it was more about on how to use it.
Cycling is the only cyclic sport that widely uses a power meter, neither skiers, runners, swimmers, rowers use them. I have no doubt that any additional stats are good and can be helpful, but IMHO it is still not justified for an average person who rides for fitness and health.
Where is the left side power meter? I must have missed it.
I was wondering that too. I'm pretty sure it's an estimation.
Both sides are measured from the spider
Is it compatible with Shimano 2x12 groupset? Magene support is not very helpful, they do not respond to emails. They only replied on AliExpress, but I got the answer that Magene PES P505 Base is not compatible with the Yoeleo R12 frame 😂 so according to their support this video should never have been made 😂
Yes it is. Same 4 bolt bcd , same spider width , same 24mm bottom bracket.
@stevenleffanue One more question. Compatibility with Shimano 105 DI2 R7100. Sigeyi also has a crankset with a power meter, but they added a note in the description: "Compatibility: compatible with all 10-12s chainrings; this crank is not compatible with Shimano R7150 front derailleur." Maybe you know if Magene is compatible or not with this fron derailleur?
Yes the magene power meter is compatible with Shimano di2 11speed and 12 speed.
Isn't the L/R comparison just an estimation ? This powermeter does not have exact data for each leg since its a spider PM
No. Pedal with left leg only and it still reads power. Left and right readings are separate.
@@stevenleffanue oh ok. thanks a lot!
I want this for my triple!
Hi Oz! When you calibrate this power meter on the app / head unit, what number do you get as a result? On mine I get as a result sometimes 9, sometimes 10. But I have no clue what that number means. Magene could not give a proper answer either.
Try calibrating by pedalling backwards 5 times , it should read 0
@@stevenleffanue My other power meters (Assioma and BePRO) return 0 as a calibration result. This one, for whatever reason, does not. Magene confirmed it. But I want to know if 9 or 10 are the expected numbers.
No idea. I reset mine at the start of every ride by pedalling backward , it goes to 0. Sounds like the app. is biasing. Maybe a viewer can help here?
@@stevenleffanue Although I still don't know what the "10" as a result means, at least it seems that this is the expected value. Found it hidden on this video: ruclips.net/video/x3tqvlVVVTQ/видео.html at 3:50
PES is not a real double sided, but rather estimates it with algorithm. QED is a real double sided, but difference is minimal imo.
I have a Bianchi with Campagnolo, will this unit work for me?
Only if you buy the PES or QED crankset to match with your bottom bracket
do we know what the crankset is made of? want ot make sure the spindle is not aluminum
Treated steel...like shimano
@@stevenleffanue thanks! That makes me feel better. Couldn’t find mention of it anywhere in their site.
It's around 450 aud here in the philippines
Has anyone tried it with oval chainrings yet?
Interesting PM system, but I don't think they are getting cheaper.
Running an older SRAM red I can’t justify the expense of new BB, crank arms and power meter. I’ll just rely on feel, cadence, heart rate and incline. Strava’s estimated power doesn’t seem to take the prevailing wind into account but it gives you some idea if you often ride the same route.
Magene have a power meter for sram. No need replace cranks or bb.
@@stevenleffanue Thanks for the reply. I live in Japan and it doesn’t seem to be distributed here. Not sure if I want to buy through Ali Express in case something goes wrong but will research some more.
The power estimation method you mention can be used with some Sigma Sport STS ALT - CAD computers as I have used these in conjunction with their optional heart rate monitor kit .
Do they have an FSA gossamer compatible version do you know?
120/90 BCD...no they don't
I just noticed this power meter registers left and right power when we paddling with only one paddle, by one leg or one hand.
That means any up stroke drive on one side is recorded as power to the opposite side.
Essentially it reads crank shaft torque and not individual crank arm torques.
If I noticed this sooner I may fall for their other model that uses independent sensors.
Hope this helps.
Ali express gloves ... nice
Can it be used with any Shimano speedset? A lot of meters seem to work only with specific speedsets. My bike came with Shimano Tiagra 3x10 speedset. Will 3 chainrings instead of 2 also fit (and will the meter still be accurate/consistent) ?
Only with 2x 10 Tiagra
Can I just replace the 3 speed Tiagra crankset with the powermeter cranks with 2 chain rings included or more is needed? (I don't mind having one front chainring less)
Yep that should be fine
Nice. so no need to get a new chain, front shifter or front derailleur.
No. You will need to adjust the limit screws of the front derailleur so it want over shift tho.
I have this device, it is good
Where to buy and what about pricing? Greetings to AU
Australian agent....
www.fesports.com.au/Shop/C_5760/Magene_Cycling
Is this not just a torque sensor???
Similar, yes.
Not what I had in mind, thought you were going to review all of the power meters out there, and not promote just one.
can I use this power meter with SRAM etap AXS Rival?
Yes , the "1103" model fits "Rival 22".
It works with new 105 1x12 R7100?
Yes , 12 speed chainring compatible.
Does this work for 1x ?
will this work with GRX cranksets?
Yes , 110 bcd
Magene PES.. 505 .. its the Sauce .
the real pros going back to heart rate training; watts says nothing of the body. (pogy)
무게가 더 가벼워지면 좋겠어요
AliExpress AUD $477 27/9/23 dual side with no chainrings! Bargain
why would most people be running Shimano? most of my riding friends run SRAM AXS of some sort..for this reason the Quark SRAM POwer Meter Spider is great...works with existing crank...nice and accurate and not that much more expensive than the Magene one and you dont need to toss the old crank arms either
Interesting. Which country do you live in ?
@@stevenleffanue UK..
Right. Australia seems to be dominated mostly by Shimano ...prolly more SRAM on the off-road side of bikes tho.
@@stevenleffanue that makes more sense now then....
@@JBR.1974 In Asia too, Shimano is much cheaper than SRAM. Also if you have BB86 you are better with a Shimano 24mm axle than a 29mm Dub. Bearing are too skinny on the Dub.
Spoiler its $599 au
At 5:30 Those are screws, not bolts. "Bolt" = Screw + NUT. It's a common mistake. Too much so.
I have the best power meter known to mankind, it's compatible with all of my bikes and gives me 100% accurate feedback all of the time. Often, it is even able to predict the future power required for the next part of a ride if I request it to. It costs me nothing to buy nor maintain and is free to use. In fact most people already have one but don't realise they do and they seldom use it anyway. It's a piece of equipment you carry on every ride. If you still think you need to buy and install one, think again...😊
Fantastic comment & 100% bang on point.
You've smelt the coffee 😀 & will not be led astray like a sheep.
As a physiologist who teaches at a medical school and carries out research on visceral sensory systems, lives in a hot climate, and has seen fellow riders suffer badly on long rides because they went out of the gate too fast, I would say that the incorrect thing you wrote above is that your system gives you %100 accurate feedback all of the time.
@@stuartdryer1352 I get what you're saying but the feedback and knowledge is already there, it's the rider who thinks they're better than they are and doesn't pay attention to the indications that's the problem I think, not the absence of another expensive unnecessary piece of new tech giving those indications.
@markcarlton
The problem is RPE becomes much less reliable at temperature extremes. Of course, a lot depends on the kind of riding you do, and what you are trying to get out of it.
@@stuartdryer1352yes, except I would contend that if your RPE is so bad that you don't even realise you're overexerting yourself then a power meter can't help you. If of course, as you say, you are riding to win a world championship then it might help a little, but only if you're getting the best medical and training advice as well - for the rest of us mere mortals they are simply another way of relieving us of more $$$.
Why do you need a power meter when you're not competing?
You don't, but the people selling need you to buy😅
@@markcarlton
They would like you to buy, yes, but going along with such if a mistake of the buyer.
Pourquoi les gens achètent un SUV pour rouler en ville ?
Pacing is the big one.
@@bindingcurve
Good old 'feel' & learning pacing, experience over a distance, plus effective nutrition, will do that.
But each to their own.
That chinese brand i used before but is not accurate