Interesting, I bought this powermeter initially based on gplama’s review (after the find my update) but wasn’t happy about its seemingly high power readings even when compared to my kicker v6. Appeared to be a faulty unit and they replaced it under warranty after I contacted them but have not been able to trust the power readings. Seemed to always report higher than the kicker. Later bought the Assioma Mx dual sided based on the reviews and trust their readings much more. Your channel is such high value for us consumers. Thanks for your work. I’ve experienced first hand how much work it is to record this data and compare it. Most mortals don’t have access to multiple power meters to compare the accuracy. This might explain my high readings I still have. Since I mostly ride gravel.
You're always going to lose power between the crank and the rear freehub because drivetrains are not 100% efficient. You can lose 5w just from the drivetrain lube type and cleanliness alone, for example. Also, if you're talking about a single sided PM, and that side is your dominant leg... Also worth mentioning that kickrs smooth power A LOT.
I love my Stages GRX left side power meter! I was going to send in my drive-side in, but the company went belly up before I had a chance. I haven't paid super close attention, but I haven't had any apparent power reporting issues, regardless of terrain. Now, I'm leaning towards the new Favero Assioma pedals to get L/R reporting to help with monitoring recovery from total knee replacement surgery. Thanks for all your great research and informative (and fun!) videos.
Many Thanks! Another great deep dive video; we all appreciate the time you put into the testing and video editing. Anything on the technical side preventing a rider from just mounting a SRAM/Quark PM crankset with a Shimano drivetrain? I've had 4+ SRAM Quark PM cranksets and they just work out of the box and to my knowledge their reliability has been proven by GPLama, DC Rainmaker and others testing PMs. Whether it be 4iiii, stages or Shimano, so many seem to have issues; the SRAM doesn't. Kudos to those Assioma pedals, which also seem to just work flawlessly as verified by several reviewers.
I had a grx 3+ and it was completely unsuited to wet gravel conditions. Also the warranty isn’t worth the paper it’s written on as 4iiii aren't easy to deal with (from the uk anyway). I also have a precision integra and that was fine but it rarely got wet so no idea if would be the same outcome. I swapped to favero mx-pro (which had only just gone out and was seemingly the only viable option)and have never been happier. So far so good, and you don’t need to calibrate and it’s waterproofness is rock solid.
Since a few month, I've get stage gen 3 left powermeter (just before their bankrupt). The battery seems to hold 60 to 80 hours. About the cadence, you have the choice between internal gyroscope or sensor + magnet (off road purpose) which drain more battery. I'm using the magnet, and it's work fine for my usage (mix offroad and road)
I had a one-sided Precision 3+ power meter that died after few months (drained coin batteries like crazy in weeks instead of promised 800 hours of actual use). The warranty replacement unit failed in similar way after only a couple of months. I used the crank indoors and on road in dry conditions. A painful and slow warranty replacement process with the company. Luckily I got my money back and ended up with Favero pedals instead.
The precision 2 was plagued with phantom-drain too because of that damn chipolo tracking that you couldn't turn off and nobody ever actually used. I have to replace the battery every few months whether I use it or not. I hope they drop this tracking gimmick on the precision 4...
after using a Stages 4 for about one year on my gravel bike I changed to power2max ngeco with the 1% upgrade, and won't go back to these kind of crank arm based powermeters for sure ... on the TT bike I use Assioma Duo Shi with no issues so far , thx from GER
It's worth noting that the FindMy function on the 3+ does not work in the same way as an AirTag, as advertised by 4iiii. The powermeter uses simple GPS to determine if the bike is being ridden. Or in other words, if the bike is inside the van of the criminal who just stole it, and the van is moving, the device is in powermeter mode, not FindMy mode. FindMy is only activated 4 minutes after the powermeter stops moving on GPS. I had my Precision 3 upgraded to +, which meant sending it to Canada from the UK, but when I demonstrated that the FindMy function was being missold, 4iiii acknowledged this and gave me a refund. I'm only saying this so that other people know not to expect their 3+ to work exactly like an AirTag.
@@gplama This is what I was eventually told by 4iiii after a stressful and unnecessary amount of back and forth: "The key difference between the PRECISION 3+ and a regular AirTag is that the PRECISION 3+ cannot be a Find My device all the time, unlike an AirTag. As it is a dual purpose device, powermeter and Find My device, it does not act as a Find My device when the powermeter is in powermeter mode. It will be in powermeter mode anytime the gyroscope in the powermeter detects movement. Movement is essentially anytime the powermeter is physically moving, regeardless if it is specifically being ridden as a powermeter. The powermeter has to sit stationary for 4 minutes for it to switch into Find My mode and start broadcasting to the Find My network." So even though the gyroscope is able to accurately measure cadence, it somehow can't differentiate between rotation and linear movement.
@@LongbranchOlivetti not 100% sure but I think that mode switching with movement is a requirement Apple has set for all third party Find my devices. Airtag doesn’t have to follow this rule as it has the speaker to warn someone if they are moving and Airtag which is not nearby its owner. If the third party device doesn’t have a speaker, they try to mitigate stalking by this rule I guess. While its impractical to sneak a power meter to someone’s purse to stalk them, I guess someone could install it to someone elses bike. Anyway, Apple’s rules and Apple doesn’t like to do exceptions.
@@viljamip Yep, you’re absolutely right, it is Apple’s 3rd party rules, 4iiii told me this. My gripe is that 4iiii don’t state this in any of the Precision 3+ literature; they say only that it works exactly like an AirTag. It is misleading. 10 months ago when going through this with them, I suggested they amend the marketing, but they have so far failed to do so.
Thinking more on this - Not having it beacon as a ‘AirTag’ while moving means it’s unlikely to trigger the stalking alerts. In the event someone is moving with an unknown ‘AirTag’, they’ll get a notification one has been moving with them when they reach a commonly frequented destination such as home or work. If the 4iiii implementation doesn’t register as ‘moving with’ and only beacons when stationary, this could potentially be a better operation in some instances. Hmm.🤔
Definitely see that as neat for new purchases cosmetic-wise. Though my current favero road pedals is still kicking pretty good for 3 years now, so I may not be upgrading anytime soon xD. Does the MX have cycling dynamics Platform center offset? Current road always reports 0 since it's not supported if I recall.
I've just installed a 4iiii 105 R7000 left crank on my road bike. I only did one ride so far but during the last descent of the day I noticed that sometimes my garmin showed 15-20w when i was freewheeling. Hoping is something they would solve with the next firmware update.
On my gravel bike with grx810-1 crank, I have a factory installed, dual sided pm from inpeak. Could make one comparision with the Assioma (road) pedals and it looked fine @gplama, I'd love to see those pm in the lama lab test. Greetings from Germany
I used to have a Stages R7000 crank that reported way over 1000W when coasting over rough cobbles. It still worked well for structured training but I couldn’t trust the max power numbers
I have a Cannondale Super 6 with the Hollowgram crank and after a prolonged search for a 165mm L-hand crank arm I have had it sent off to Canada for a 4iiii factory fit. As you can imagine it’s neither a quick nor cheap process. However, I settled on 4iiii on the basis of its accuracy and the bonus of the AirTag. It’s disappointing to see your review noting these shortfalls. Nonetheless, always a good report by yourself and for me thanks for flagging this with 4IIII. Hopefully, by the time I get mine back the false-positives of when powered down might be resolved. If not, it’s a liveable problem I can live with. I was thinking the AirTag was a great innovation and now well yeah sort off. Just to say again great report
I have the previous generation product installed on my road bike and on downhills I’m getting some high readings when I push my leg on a pedal to help with a turn. I thought it should be this way, because I’m applying power to the crank. Now I now it’s a bug…
I have one of these, not seeing this issue, it drops to 0 every time on a coast. I do get the occasional dropout though, maybe once every few rides and it'll stay intermittent until I delete it and add it again.
yesterday i notice srm effectively reduced their price of the ultra light origin option by offering a cheaper cybrei crank option and today I randomly decide to watch this telling me my pm is inaccurate when coasting. Its like a sign telling me what i need to do. I will have to test coasting on my interval rides. Did you test any precision 3 non plus to see if this occurs or is it only the 3+? I'd guess it would also happen on the 3 non plus but maybe something went wrong when adding the air tag functionality.
Any news about the Stages case!? Since the initial information storm about the lay offs, etc. I never heard anything. And I just checked the website and it seems, you still can order from their site!?
While I hope my own experience with 4iiii isn't representative of their products, both the powermeters and their HR strap have left me unimpressed. I personally think they have some work to do on quality control.
If power is cadence x torque and your cadence is 0 then even if the strain gauge is getting some dodgy torque readings from the bumps shouldn't the power still be 0 because the cadence is 0. So weird..
I have 2 4IIII precision 3+'s, a 105 R7000 and a ultegra R8150 one. Never experienced this issue you described here, although the ultegra is yet to see gravel, the 105 has seen plenty. The only issue i had on British - pothole ridden roads, was the 105 kept dropping off / disconnected quite often. tuned out the coin cell had the anti-child bitter taste stuff on it keeping it from making a proper contact. Cleaned with alcohol, all good since. Maybe you got a dud?
@@gplama strange. Suppose lucky me then! I was about to say I can share a couple fit files but I got no comparison device though. I had a few issues with the 105 one but mostly due to the battery shipped having the child protection stuff on it. Back then I looked at the faveros, the Shimano version but the bearing/bushing design on the shi’s did not inspired durability. And I didn’t fancy changing all my stuff to keo cleats.. so this was it.
I see that Look now offers pedals with builtin power meters. I haven't seen anyone do a review about them. Are these rebranded FAVERO Assioma powermeters from a deal with Look or are these new?
I am using the 4iiii precision 3 GRX left crank power meter. Not the plus version but the previous one. Have not noticed this issue while riding / coasting on my gravel bike.
Could I ask how you get the garmin recording? I like to do videos of my rides sometimes, and I think thats cool. Thanks for the great content and reviews!
Ah well, I cant seem to access that hidden menu on the 540. Unless something corresponds to the arrow buttons that I cant find. What looks like it should be the button is the one that starts an activity. Will keep playing. Using the telemtry overlay app for overlays, but I do miss Garmin Virb Edit. It was the best
Thanks a lot. What is your estimate regarding the full review for the dual road version. At the moment - as you said - it is one of the very few crank-based options if you want to run a full Shimano crankset. I've been holding out buying it, fueled partly by what seems like many negative reviews (not about the accuracy, but the reliability) and by waiting for your review!
I've been sent three Precision 3+ Pro R9200 chainsets. They all appear to be really susceptible to offset/calibration swings and I'm still encountering lower readings on the right side. I'll loop back to this meter when 4iii release the next firmware.
That wouldn’t solve all their power problems. Shimano purchased Pioneer power meter tech and didn’t do anything with it other than push out an update with force vector analysis. Shimano need a purpose built power meter and shouldn’t be messing about with post production glue-on crank modifications.
My grx meter was always unreliable. I’ve had to stop multiple times during rides to calibrate. Cadence didn’t seem quite right and power was grossly wrong. I could be pushing hard and only reading zone 1 and sometimes barely pushing and getting high numbers. Last straw was when it was reading a fixed reading of 900 watts when soft pedaling then would drop out all together with no cadence reading then jump right back over 1000 watts. Calibrating and completely unpairing then re pairing did nothing. Tossed in the parts bin after that and switched to sram. Real shame, my road arm with the old sensor was always solid.
Lame question: what's the difference between road power meter and MTB one? For pedals - obviously the clip-in system. But is there a difference in measurement itself? Just wondering, as engineer :D
As I understand - Noise filtering the data. Off-road there’s a lot more vibration, stop/starts, etc. This may be related to the phantom cadence/power if 4iiii are trying to measure cadence/power at the soonest possible moment of crank movement when off-road.
The issue you found is interesting but really no big deal. I use power for pacing, especially when climbing. When I coast I really don t care. The issue will very slightly affect your power average but not by much and that really matter all that much.
Shane, it's hard to take anything you say seriously since you ride a sponsored/free Chinese knockoff bike and shamelessly promote their products and hammer legit brands. In this instance your suspect the frame flex and vibration is more than any crank-based PM could handle and your pedal based PMs have a whole bunch of unique problems of their own - so hardly comparable. Now that's not to say 4iiii is perfect, I have had to return a defective conversion product in the past , but contrary to your experience, the folks from Alberta Canada were incredibly responsive and a replacement was on my bike within 9 days - they admitted to an error in adapting the crank arm I sent, so provided a brand new one instead..and since not problem! The bottom line is I have concerns about your credibility and motivation; you seem to be in the pockets of Chinese manufacturers.
Have you actually watched the details and intricacies of what Shane discovers and talks about? Favero Assioma is literally Made in Italy. What Chinese? There is no other channel with this amount of detailed videos around power meters. His Power Meters playlist has 82 videos including SRAM, Shimano and other brands. I have had my ebike motor replaced by a Made in Germany brand for free and my colleague had his custom made carbon handlebar replaced by a Chinese brand because a measurement wasn't accurate, also for free and the whole cockpit cost him less 300 euros. No one is picking countries or specific brands here. We all care about product quality and after sales service.
If crank based power meters work on mountain bikes with suspension obviously the tiny amount of frame flex in a gravel bike isn’t going to invalidate the test. A crank based power meter made for off road should be able to handle it.
And I thought Raygun’s ‘dancing’ was going to be the worst thing I’d see this week. I was very wrong. It was this wild comment. Anyhow - Like the legendary Raygun, hop on like a kangaroo mate, and don’t be a racist cunt. ✌️
Interesting, I bought this powermeter initially based on gplama’s review (after the find my update) but wasn’t happy about its seemingly high power readings even when compared to my kicker v6. Appeared to be a faulty unit and they replaced it under warranty after I contacted them but have not been able to trust the power readings. Seemed to always report higher than the kicker. Later bought the Assioma Mx dual sided based on the reviews and trust their readings much more. Your channel is such high value for us consumers. Thanks for your work. I’ve experienced first hand how much work it is to record this data and compare it. Most mortals don’t have access to multiple power meters to compare the accuracy. This might explain my high readings I still have. Since I mostly ride gravel.
You're always going to lose power between the crank and the rear freehub because drivetrains are not 100% efficient. You can lose 5w just from the drivetrain lube type and cleanliness alone, for example. Also, if you're talking about a single sided PM, and that side is your dominant leg... Also worth mentioning that kickrs smooth power A LOT.
I love my Stages GRX left side power meter! I was going to send in my drive-side in, but the company went belly up before I had a chance. I haven't paid super close attention, but I haven't had any apparent power reporting issues, regardless of terrain.
Now, I'm leaning towards the new Favero Assioma pedals to get L/R reporting to help with monitoring recovery from total knee replacement surgery.
Thanks for all your great research and informative (and fun!) videos.
I used the old Assiomas after ACL reconstruction. They are super robust and "just work".
Many Thanks! Another great deep dive video; we all appreciate the time you put into the testing and video editing. Anything on the technical side preventing a rider from just mounting a SRAM/Quark PM crankset with a Shimano drivetrain? I've had 4+ SRAM Quark PM cranksets and they just work out of the box and to my knowledge their reliability has been proven by GPLama, DC Rainmaker and others testing PMs. Whether it be 4iiii, stages or Shimano, so many seem to have issues; the SRAM doesn't. Kudos to those Assioma pedals, which also seem to just work flawlessly as verified by several reviewers.
I had a grx 3+ and it was completely unsuited to wet gravel conditions. Also the warranty isn’t worth the paper it’s written on as 4iiii aren't easy to deal with (from the uk anyway).
I also have a precision integra and that was fine but it rarely got wet so no idea if would be the same outcome.
I swapped to favero mx-pro (which had only just gone out and was seemingly the only viable option)and have never been happier. So far so good, and you don’t need to calibrate and it’s waterproofness is rock solid.
Always great content Shane!
I’ve had a very similar experience with the same GRX precision 3+ except I’ve also had a random power spike here and there on pretty rough gravel
Same here. After a patch of rough gravel/stones, it just started to act as a random number generator for a while.
Since a few month, I've get stage gen 3 left powermeter (just before their bankrupt). The battery seems to hold 60 to 80 hours. About the cadence, you have the choice between internal gyroscope or sensor + magnet (off road purpose) which drain more battery. I'm using the magnet, and it's work fine for my usage (mix offroad and road)
I had a one-sided Precision 3+ power meter that died after few months (drained coin batteries like crazy in weeks instead of promised 800 hours of actual use). The warranty replacement unit failed in similar way after only a couple of months. I used the crank indoors and on road in dry conditions. A painful and slow warranty replacement process with the company. Luckily I got my money back and ended up with Favero pedals instead.
The precision 2 was plagued with phantom-drain too because of that damn chipolo tracking that you couldn't turn off and nobody ever actually used. I have to replace the battery every few months whether I use it or not. I hope they drop this tracking gimmick on the precision 4...
I have had the exact same issues…. Currently back with the retailer
after using a Stages 4 for about one year on my gravel bike I changed to power2max ngeco with the 1% upgrade, and won't go back to these kind of crank arm based powermeters for sure ... on the TT bike I use Assioma Duo Shi with no issues so far , thx from GER
It's worth noting that the FindMy function on the 3+ does not work in the same way as an AirTag, as advertised by 4iiii. The powermeter uses simple GPS to determine if the bike is being ridden. Or in other words, if the bike is inside the van of the criminal who just stole it, and the van is moving, the device is in powermeter mode, not FindMy mode. FindMy is only activated 4 minutes after the powermeter stops moving on GPS. I had my Precision 3 upgraded to +, which meant sending it to Canada from the UK, but when I demonstrated that the FindMy function was being missold, 4iiii acknowledged this and gave me a refund. I'm only saying this so that other people know not to expect their 3+ to work exactly like an AirTag.
It’d be interesting to know exactly what causes it to switch modes. I’d hope general moment (not rotation) would keep it in Find My beacon mode.
@@gplama This is what I was eventually told by 4iiii after a stressful and unnecessary amount of back and forth:
"The key difference between the PRECISION 3+ and a regular AirTag is that the PRECISION 3+ cannot be a Find My device all the time, unlike an AirTag. As it is a dual purpose device, powermeter and Find My device, it does not act as a Find My device when the powermeter is in powermeter mode. It will be in powermeter mode anytime the gyroscope in the powermeter detects movement. Movement is essentially anytime the powermeter is physically moving, regeardless if it is specifically being ridden as a powermeter. The powermeter has to sit stationary for 4 minutes for it to switch into Find My mode and start broadcasting to the Find My network."
So even though the gyroscope is able to accurately measure cadence, it somehow can't differentiate between rotation and linear movement.
@@LongbranchOlivetti not 100% sure but I think that mode switching with movement is a requirement Apple has set for all third party Find my devices. Airtag doesn’t have to follow this rule as it has the speaker to warn someone if they are moving and Airtag which is not nearby its owner. If the third party device doesn’t have a speaker, they try to mitigate stalking by this rule I guess. While its impractical to sneak a power meter to someone’s purse to stalk them, I guess someone could install it to someone elses bike. Anyway, Apple’s rules and Apple doesn’t like to do exceptions.
@@viljamip Yep, you’re absolutely right, it is Apple’s 3rd party rules, 4iiii told me this. My gripe is that 4iiii don’t state this in any of the Precision 3+ literature; they say only that it works exactly like an AirTag. It is misleading. 10 months ago when going through this with them, I suggested they amend the marketing, but they have so far failed to do so.
Thinking more on this - Not having it beacon as a ‘AirTag’ while moving means it’s unlikely to trigger the stalking alerts. In the event someone is moving with an unknown ‘AirTag’, they’ll get a notification one has been moving with them when they reach a commonly frequented destination such as home or work. If the 4iiii implementation doesn’t register as ‘moving with’ and only beacons when stationary, this could potentially be a better operation in some instances. Hmm.🤔
I have the same one, I'll have to pay attention on my next ride.
I wonder when Favero finally updates the Assioma road pedals to the same podless design the new MX pedals have.
Definitely see that as neat for new purchases cosmetic-wise. Though my current favero road pedals is still kicking pretty good for 3 years now, so I may not be upgrading anytime soon xD. Does the MX have cycling dynamics Platform center offset? Current road always reports 0 since it's not supported if I recall.
I've just installed a 4iiii 105 R7000 left crank on my road bike. I only did one ride so far but during the last descent of the day I noticed that sometimes my garmin showed 15-20w when i was freewheeling. Hoping is something they would solve with the next firmware update.
Free watts! 😂
On my gravel bike with grx810-1 crank, I have a factory installed, dual sided pm from inpeak. Could make one comparision with the Assioma (road) pedals and it looked fine
@gplama, I'd love to see those pm in the lama lab test.
Greetings from Germany
ahhhh 4iiii. The company I wanted to stick with so bad but finally made me swear off using anything but favero assioma from now on.
I used to have a Stages R7000 crank that reported way over 1000W when coasting over rough cobbles. It still worked well for structured training but I couldn’t trust the max power numbers
Will you update this video or create a new one if/when 4iiii addresses the coast issue?? Seems like a glaring issue…
Yay bonus watts!
I have a Cannondale Super 6 with the Hollowgram crank and after a prolonged search for a 165mm L-hand crank arm I have had it sent off to Canada for a 4iiii factory fit. As you can imagine it’s neither a quick nor cheap process. However, I settled on 4iiii on the basis of its accuracy and the bonus of the AirTag. It’s disappointing to see your review noting these shortfalls. Nonetheless, always a good report by yourself and for me thanks for flagging this with 4IIII. Hopefully, by the time I get mine back the false-positives of when powered down might be resolved. If not, it’s a liveable problem I can live with. I was thinking the AirTag was a great innovation and now well yeah sort off. Just to say again great report
I have the previous generation product installed on my road bike and on downhills I’m getting some high readings when I push my leg on a pedal to help with a turn. I thought it should be this way, because I’m applying power to the crank. Now I now it’s a bug…
What a fun job you got
It has rough patches. 🥁😉
I have one of these, not seeing this issue, it drops to 0 every time on a coast. I do get the occasional dropout though, maybe once every few rides and it'll stay intermittent until I delete it and add it again.
yesterday i notice srm effectively reduced their price of the ultra light origin option by offering a cheaper cybrei crank option and today I randomly decide to watch this telling me my pm is inaccurate when coasting. Its like a sign telling me what i need to do. I will have to test coasting on my interval rides. Did you test any precision 3 non plus to see if this occurs or is it only the 3+? I'd guess it would also happen on the 3 non plus but maybe something went wrong when adding the air tag functionality.
More and more I'm starting to think crank pms just aren't worth the trouble.
Looks like the 4iii is recording non-rotational vibration as power when the Assioma's don't.
Any news about the Stages case!? Since the initial information storm about the lay offs, etc. I never heard anything. And I just checked the website and it seems, you still can order from their site!?
Nothing sorry.
@@gplama Thx for your quick reaction! 😳👍
While I hope my own experience with 4iiii isn't representative of their products, both the powermeters and their HR strap have left me unimpressed. I personally think they have some work to do on quality control.
If power is cadence x torque and your cadence is 0 then even if the strain gauge is getting some dodgy torque readings from the bumps shouldn't the power still be 0 because the cadence is 0. So weird..
Correct. That’s why I took a look at the cadence readings when it was giving ghost watts… and yep, ghost cadence.
Heh apologies if it was mentioned in the video, I usually skip the graphed sections.
I have 2 4IIII precision 3+'s, a 105 R7000 and a ultegra R8150 one. Never experienced this issue you described here, although the ultegra is yet to see gravel, the 105 has seen plenty.
The only issue i had on British - pothole ridden roads, was the 105 kept dropping off / disconnected quite often. tuned out the coin cell had the anti-child bitter taste stuff on it keeping it from making a proper contact. Cleaned with alcohol, all good since.
Maybe you got a dud?
Unlikely it’s a dud. It happens on the R9200 dual as well.
@@gplama strange. Suppose lucky me then! I was about to say I can share a couple fit files but I got no comparison device though.
I had a few issues with the 105 one but mostly due to the battery shipped having the child protection stuff on it.
Back then I looked at the faveros, the Shimano version but the bearing/bushing design on the shi’s did not inspired durability. And I didn’t fancy changing all my stuff to keo cleats.. so this was it.
The alcohol on the coin cell is an interesting tip as I'm having the issue you are describing on rough roads!
@@ipaterson worked for me. Zero issues after I removed the child protection stuff..
I see that Look now offers pedals with builtin power meters. I haven't seen anyone do a review about them. Are these rebranded FAVERO Assioma powermeters from a deal with Look or are these new?
They are not from Favero. I have a set of the Look X-Track SPD pedals here purchased retail. Review will be published soon.
I am using the 4iiii precision 3 GRX left crank power meter. Not the plus version but the previous one. Have not noticed this issue while riding / coasting on my gravel bike.
Could I ask how you get the garmin recording? I like to do videos of my rides sometimes, and I think thats cool. Thanks for the great content and reviews!
I think I just found one of your videos that talks about this! So thanks for it from the future (to that video)
Ah well, I cant seem to access that hidden menu on the 540. Unless something corresponds to the arrow buttons that I cant find. What looks like it should be the button is the one that starts an activity. Will keep playing. Using the telemtry overlay app for overlays, but I do miss Garmin Virb Edit. It was the best
Thanks a lot. What is your estimate regarding the full review for the dual road version. At the moment - as you said - it is one of the very few crank-based options if you want to run a full Shimano crankset. I've been holding out buying it, fueled partly by what seems like many negative reviews (not about the accuracy, but the reliability) and by waiting for your review!
I've been sent three Precision 3+ Pro R9200 chainsets. They all appear to be really susceptible to offset/calibration swings and I'm still encountering lower readings on the right side. I'll loop back to this meter when 4iii release the next firmware.
@@gplama Looking forward to it! Thanks a lot for the update and work you do!
Would it not more sense for Shimano to purchase Stages ??
That wouldn’t solve all their power problems. Shimano purchased Pioneer power meter tech and didn’t do anything with it other than push out an update with force vector analysis. Shimano need a purpose built power meter and shouldn’t be messing about with post production glue-on crank modifications.
My grx meter was always unreliable. I’ve had to stop multiple times during rides to calibrate. Cadence didn’t seem quite right and power was grossly wrong. I could be pushing hard and only reading zone 1 and sometimes barely pushing and getting high numbers. Last straw was when it was reading a fixed reading of 900 watts when soft pedaling then would drop out all together with no cadence reading then jump right back over 1000 watts. Calibrating and completely unpairing then re pairing did nothing. Tossed in the parts bin after that and switched to sram. Real shame, my road arm with the old sensor was always solid.
So what powermeter would you suggest for gravel?
Both SRAM Quarq and Assioma PRO-MX test well.
@@gplama Thanks! I appreciate your quick response
Lame question: what's the difference between road power meter and MTB one? For pedals - obviously the clip-in system. But is there a difference in measurement itself?
Just wondering, as engineer :D
As I understand - Noise filtering the data. Off-road there’s a lot more vibration, stop/starts, etc. This may be related to the phantom cadence/power if 4iiii are trying to measure cadence/power at the soonest possible moment of crank movement when off-road.
That's the free power you'd get if all the claimed aero gains were true...
The issue you found is interesting but really no big deal. I use power for pacing, especially when climbing. When I coast I really don t care. The issue will very slightly affect your power average but not by much and that really matter all that much.
i Have The same ;but No Issure s on cobblestones ...or bad road s
Both 4iiii I had were absolute garbage.
4iiii is no good. i would not place one on my bike, if i got it for Free. 4iiii is a joke.
Shane, it's hard to take anything you say seriously since you ride a sponsored/free Chinese knockoff bike and shamelessly promote their products and hammer legit brands.
In this instance your suspect the frame flex and vibration is more than any crank-based PM could handle and your pedal based PMs have a whole bunch of unique problems of their own - so hardly comparable. Now that's not to say 4iiii is perfect, I have had to return a defective conversion product in the past , but contrary to your experience, the folks from Alberta Canada were incredibly responsive and a replacement was on my bike within 9 days - they admitted to an error in adapting the crank arm I sent, so provided a brand new one instead..and since not problem! The bottom line is I have concerns about your credibility and motivation; you seem to be in the pockets of Chinese manufacturers.
Where do you think your "legit western brand" frame was made lmfao
Have you actually watched the details and intricacies of what Shane discovers and talks about? Favero Assioma is literally Made in Italy. What Chinese?
There is no other channel with this amount of detailed videos around power meters. His Power Meters playlist has 82 videos including SRAM, Shimano and other brands.
I have had my ebike motor replaced by a Made in Germany brand for free and my colleague had his custom made carbon handlebar replaced by a Chinese brand because a measurement wasn't accurate, also for free and the whole cockpit cost him less 300 euros. No one is picking countries or specific brands here. We all care about product quality and after sales service.
If crank based power meters work on mountain bikes with suspension obviously the tiny amount of frame flex in a gravel bike isn’t going to invalidate the test. A crank based power meter made for off road should be able to handle it.
And I thought Raygun’s ‘dancing’ was going to be the worst thing I’d see this week. I was very wrong. It was this wild comment. Anyhow - Like the legendary Raygun, hop on like a kangaroo mate, and don’t be a racist cunt. ✌️
This looks like a bot to me. Don’t reply and feed it.
To overwhelm the '4iiii', you need 4🦙🦙🦙🦙 worth of power!