Please please please have Doddy give a sort of “MTB Geometry 101” video. I think most people know just enough to make semi-informed decisions about their frame+wheels choices.
Minimal tire clearance is about 1,5mm. How do i know? Running a 26in frame (very stiff XC frame) with 27,5in wheels. So far i have not run into problems. Also, Kashima: It looks nice, otherwise it's marketing buzz.
#askgmbntech I've recently baught a Calibre triple b but I also own a giant anthem x1 2009. The giant is upgraded and much lighter than my Calibre so it's still going to get used however I feel that I've outgrown the bike. My calibre has 800mm bars and the giant has 660mm bars, will the wider bars make me fit the giant better? And would a shorter stem be able to give it more of a 'trail' feal to the giant? Ta Sam
The pins and threading look nearly identical but they also look about the same in terms of length. DMR sells the pins for less money so it could be worth a try but it’s usually best to stay with the crankbros brand pins.
#askgmbntech Can a full suspension bike be to progesive? The advantages of progression seem great more supple at the start and firms up at the end to reduce bottoming out. However some bikes have been released with stupid amounts of progression. For example the Yt Tues.
11:00 i did break bleed and it didn't help :( (DOT fluid was clean like new one). Tried to use DOT fluid on pistons to make them move better also didnt help :(. Looks like i will have to take them apart and clean everything :(
Ive been riding 29er in South Eastern USA for 12 years. We live in heavily forested areas. Our trails tend to be tight and twisty. Ive never felt I lost anything leaving 26 for 29 but I do feel like Ive gained a ton in ability to roll over stuff that required a ton more finesse on a 26 and massively increased stability at speed of 29. Easy way to understand the stability offered from a 29 is when inflating tubeless tires. After inflation, I spin the wheel parallel to the ground to try and spread out the tubeless fluid. As the wheel and tire rotate, try turning the wheel horizontal to the ground. Its nearly impossible as the wheel rotates quickly. Now try it with a 26 wheel and you easily see what the stability difference of the 29 wheel is.
Why does my non-drive side crank arm keep loosening? I can't tell you the wattage, but I did make sure it was clear of Grease. Is it because my lead foot is non-drive side? should I learn to bunny hop with Drive side in lead? If I go over torque specs on the eagle crank arm the cranks will drag during rotation.
SRAM has a recall on those brakes right now for that issue. Check with local bike shop. They did mine at no charge and updated my brakes. My bike is a 2018 though...
#askgmbntech Hi guys love the show,here'smy question, With the price of high end mountain bikes unaffordable for most without finance,what would be your top tips for buying second hand an some of the things to check an look out for, would you recommend buying an entry level new bike or a higher end second hand one.
Either get an entry level that's easy to upgrade (tapered headtube, disc brakes, etc) over time. Or get an a-mazing bike on ebay. If you search really hard, you'll find a great deal. Just check over the bike when you collect it.
One of the other reasons that Nino likely runs Eagle with a bigger chainring up front is that the chain is more efficient (less power lost) when it is not forced to make tight bends. So it's more efficient to run a large chainring and a large cog than it is to run the same gear ratio in a small chainring and small cog. At the pro level these guys are at, those couple of watts make a difference.
What an absolutely good points about wheel size...I hadn't considered the rolling momentum of the 29 as being likely the attractive part of climbing on a recent 29er demo. I am on the shorter and lighter end 5'8" 140lbs and feel a 27.5 just fits. I am most comfortable on a 26er though as I'm still rocking a 2011...ehem Mongoose whilst I save... I'm not able to demo a 27.5, our local store is against them lol...no idk they don't have any though. Today during the ride I realized I was so much faster on my bike because it was my bike... small wheels and all. I'm going 27.5 i think though
I would imagine the 4 quick-links is due to multiple chain snaps...so well overdue new chain (and probably cassette and chainring if the chain is that worn out). I suppose the snapping could also be due to bad chain-line or something bent. Definitely something hinkey with the drivetrain.
SRAM sticky brake postons. (EDIT: Problem is piston in lever not the caliper.) SRAM warranty issue!! I had same issue. Free replacement from SRAM through local bike shop in USA. Mine is off a 2015 model. I'm not sure what years were affected.
Late with this comment but anyways: Doddy says Kashima coated needs a lot less maintenance then those with black stanchions. Well I do not know if that is only with the black Stanchions. I am riding Fox40's with the silver stanchions (coil Fox40 from 2012). I service my Fox40's once a year. They still performing perfect. So I think this Kashima talk is just marketing..... As in my case I proof Doddy wrong.
I had my showa dirtbike suspension legs out for a new valving and coating the guy at the shop advised against sending them to Japan and to just go for the black DLC, in his words: "you have to drive trophy trucks to have a noticeable difference over the heat generated, imagine on mountain bikes how useless this is, maybe for those crazy downhill guys"...
#askgmbntech I have the SRAM Guide RE brakeset on my Whyte G180. When cornering I hear the pads rubbing against the discs, mostly on the front. It doesn't even have to be on the trailside, it could simply be when commuting and soft cornering. Surely this isn't normal?
If you can't excel at mountain biking without special coatings, and $1,000 + suspension forks... you shouldn't be mountain biking. Like damn, just enjoy the challenges the trail gives you. You accelerate your potential when you actually put YOUR skills to the test. Be a great mountain biker with a great bike, not an inferior mountain biker with a great bike.
The simple reason why "Doddy" likes big 29" is that he is a tall dude. I with my 172cm or about 5,6-5,7 feet think that large wheels are too cumbersome/slow when you need to react fast. For the an Optimal bike fit all bike manufactures should drop the 26, 27, or 29" fixed wheel sizes and offer a wide variety of sizes dependent on the size of the biker. For an example look how odd looking a frame becomes in xs or xl sizes. I even am looking to see if there is a way to go down a size like 24" with Plus size tires.
#ASKGMBN Hi guys, I need your help. I'm about to buy a new enduro bike and I'm between the new YT Carpa 27 comb and the Propain Tyee ( the combo I choose for tyee is fox fork and rear suspension, kindshock dropper post, gx, cura 4 breaks and newmen evolution sl A wheels. ) What's your opinion about this two bikes ? The better suspensions and wheelset worth the extra 600€ for the Tyee? It's my first enduro and I want to make the correct choice.
#askgmbntech I have the budget SRAM NX groupset on my Whyte G180 and my 11th gear keeps dropping down and then returning. All other gears are fine though. What is your solution?
Hi doddy what's your thoughts on bolany front suspension forks as I'm thinking of buying them as they seem slightly more expensive than the rockshox rebound shocks as I'm doing a full rebuild on my MTB retro style Claude butler bike with 26 inch down hill wheels and brand new parts on my MTB retro style Claude butler bike with a brushed aluminium frame. Hope to hear from you soon please on the bolany front suspension forks. Thanks from Mark from the UK England
#askgmbntech I have the RockShox Super Deluxe Select + on the rear of my Whyte G180. When under compression, the initial stroke makes a 'squelching' noise that doesn't exactly inspire confidence. Is there a reason or even a fix for such an issue?
#askgmbntec hello doddy I am riding a specialised stunt jumper 2007 I am buying a new bike this year. I am into big jumps and drops but my bike cant take the jumping and crashing. Also im this year im starting endroe races. 80% of my riding is dh things and jumps. What bike would u recommend and do u think the canyons toque would do the job? Love the vids keep it up [ ps i have 3k to spend plz don't meshen on vide
Fox Kashima lasts longer? WTF are you on? There is ZERO difference whatsoever in performance between that and the black coating and the Kashima wears sooner and there is ZERO difference in time between services. Nobody can tell the difference in a blind test between the two, not even Greg Minaar it is pure marketing bollox.
Doddy is spot on about the two wheel sizes and most importantly how the bike fits the rider. I think there is something to be said about making tight turns on switchbacks though. 27.5 may handle this better. I think it greatly depends on where you ride most and rider fit. 29er seems to keep its momentum going with fast rolling tires and also rolls over the bumps better. On my 29er, often on switchback trails I unclip one foot and us it pivot when it makes sense. Since I ma tall I also just like the overall fit.
#askgmbntech i have a decked out trek 800 90s steel frame. fsa componets and stuff. all are xc. what old steel frame or new could i swap out. what would doddy do? like all my com[ponets except the frame are nice and could make a siiiiick xc/gravel bike if i only had a reasonably cheap old frame, like an explosif, or gt something.
What's the difference between Dry lube, Wet lube and all weather lube? Also what are the advantages / disadvantages to chain wax compared to using lube?
#askgmbntech I use a cycle-specific pressure washer to clean my bike with all the trimmings such as a foam lance. Once I have completed my cleaning regime what can I do about keeping my bottom bracket lubricated without removing it and my cranks?
#askgmbntech Hi, I just bought a new bike but I have a question about my disc brake. When the bike arrived the rear brake was perfectly alligned, but the front pad was rubbing really hard. I fixed that and there was no rubbing. Today while riding I heard the pad touch the rotor slightly when cornering and leaning the bike while riding fast. The rotor is not bent, and this does not happen when I ride normally. It does not slow me down, but I wonder if that is ok to happen.
Sounds like flex in the fork tbh, if it's a single crown fork especially (and with the newer 15mm standards axles, a downgrade from 20mm imo) you are going to get a certain amount of flex in extreme conditions. If you paid thousands of £££s then you would expect this to be minimal and only apparent under very extreme loads, but in the middling priced & cheaper end of the market such flex is more common under load (but nothing like what we used to have to put up with back in the day). I wouldn't worry about it too much, just keep an eye on it & if it gets worse take it back and have a word with your supplier.
Eh? Older frames Especially non Carbon frames which are all the rage at the moment have more tyre clearance (+plus tyre frames aside). Not only that many older bikes and indeed cheaper aren't designed to run strictly 1x meaning you have even more tyre clearance. If your riding a steel frame just put the biggest tyre you can in there and off you go as they have smaller dia' tubing and are far tougher.
Turbo Levo 2018 battery has recently gone up from around 800 to 1200 at my lbs im not happy about this. But there must be a reason for this. Im tempted to buy 2 2020 Turbo Levos then iv got spare battery for longer rides and also may use one for parts.
Cold is not an issue. Just make sure your chain is lubed well. Also, hanging your bike by the front wheel is best. If not, then turn upside down for 30 minutes to an hour, before you ride it again in Spring. This will let the fork oil get back onto the wiper seals at the top of the lowers, so they slide nicely. Cheers.
11:14 once my pisten wherent returning on my mt5 and i had do much oil in the system. I opened it at the bleed port and pushed the pistons back and some oil cane out and i never had an issue again.
Hi i have mt5 brakes on my trials bike. I have to bleed them often. Mostly just bubble bleed by sticking a seringe in the bleedport. Bit of oil in and get the air out. But the rear brake needs way more attention. And after a full bleed, the lever feels so different then after a full bleed on the front brake, so i always bubble bleed after full bleed (on the rear), when everything is installed back, so the levers will feel the same. Also i get the feeling air comes in via the piston seals, by sideways piston movement by shocks (up to rear, rear brake gets lot of stress) They are fine brakes, but need lots of attention
You have to be careful though! Sometimes the pistons just stick and you have to do exactly what doddy said in the video. If you try to push them back and they come back out it means that there's a little bit to much oil in the system
@@plaicknaa in my case i had to much oil in the system and opened the bleed screw at the lever body and then pushed them back. Some oil came out and they worked like new. I did it because there was so much oi in the system that the brake braked all the time
Hey Doddy! I’m looking at a new enduro/trail bike, my budget can’t get a top spec carbon bike. Do you think it’s better to get a top spec (suspension) bike in Alu over a lower spec bike with a carbon frame. (Bike I’m looking at is a Commencal) Thanks! Really enjoy the show
Kashima is gold anodizing. The same as black anodizing you paid for nothing And he just said he doesn’t feel a difference He’s literally telling lies on behalf of fox
Hey so in another newer video you said you can run tubeless tires without seal it and you shot straight to a clip right after saying that which made us viewers assume that you were riding that way. This video you advise against it so which is it can you or can't you? I am more or less just curious I wouldn't do that myself
But is the title representative? No... not at all. I love these guys, but this is one of the few videos in which the title represents about 5% of the content; It feels like a bait-n-switch
@gmbn did you ever do that piston clean video you said you were going to do? I cant find it and think i have same issue, i have xo brakes and i did a solid bleed with new pads, but the both sides of pads are way too close and rubbing against the disc not sure whati done wrong as the back one is fine but not as immediate as the front, did i bleed it with too much fluid? If thats possible #askgmbntech
#askgmbntech Hi! Thanks for a great channel! I have a question regarding brake pads, I am rather clear on the characteristics of the organic, semi-metallic and metallic versions but what about kevlar disc pads? Any experience? Where do you put them (character wise) compared to the other three?
i like the fox factory over any other suspension, mainly because of the grip 2 but also the kashima is quite nice. on my dh bike i have fox factory 40s and on my enduro bike i have fox factory 38s and on my dirt jumper i have fox factory 36 dj and on my trail bike i have fox rhythm 34s but the factory kashima just feels nicer even on my dirt jumper, but mainly it just looks better i havent had these bikes long enough to notice the longevity
#askgmbntech Is overheating of the Brakedisc or Brakepad a problem when racing XC? I can understand, that Brakes can overheat in downhill racing, but in an XC situation you don't brake for long periods of time. Are overheating brakes something to pay attention to for an XC rider. Thank you
I am not sure, but if you ride some downhill after climbing that xc bike, it's normal for the brakes to be hot af. If you want them to stop getting hot that fast, a larger disc should make the getting hot process slower.
#askgmbntech I´m interested in the breaking characteristics of carbon vs aluminum. Would love to see a video where breaking a carbon vs aluminum frame, handlebars etc is demonstrated. I have consciously stayed away from carbon because I´ve been told it just snaps when it breaks instead of bending like aluminum or steel, seems unsafe imho. Thanks for all the great content!
Hey Doddy, you seem to have some good insights on the effects of various geometry changes in mtb's. It would be interesting to see a video about; symptoms of maladjusted geometry to look out for, effects of various geometry changes the rider can make, explanation of the impacts of fixed geometry items (wheel size, seat tube angle, head angle etc). This information would really help riders determine the range of geometry specs which will suit their style when looking at upgrades. A good example is handlebar length, rotation, height, angle, thickness, stem length. It's difficult trying to speculate on how changes will affect the characteristics of the bike. Keep up the great work and thank you.
#askgmbntech hi! I have Shimano hydraulic brakes on my bike and i was wondering if it is ok to use other mineral oil brands in my brakes instead of the shimano oil? I got some mineral oil at the car parts store and i can't see any difference to the original oil (except that the mineral oil i bought is green instead of red...). Is it ok to bleed my brakes with brake oil that was originally meant for cars or can it be harmful for my bike? Thanks and greetings from Finland!
While DOT fluids adhere to the same standards, "mineral" fluids vary wildly. For example, Magura Royal Blood has a boiling point of 120 degrees Celsius, while Shimano brake fluid has a boiling point of 280 degrees Celsius. Viscosity levels also differ and additives in mineral brake fluid for cars might damage seals in bicycle brakes. I wouldn't take the risk for the 25 bucks a liter of Shimano mineral oil costs (likely enough for a lifetime).
#askgmnbtech hey Doddy! I removed the outer sleave of my RockShox Monarch plus shock, to see the conditions of it, and some oil dripped. Is this normal? I've seen many of your videos showing how to remove the sleeve to ad volume spacers and so on and I never seen oil dripping or this being mentioned in the video. Thanks!
@@taranjohal4790 if you are clamping it in a position that is not natural such as horizontally it is fine as long as you don't leave it in that position for a long time. Just remember it is just as delicate as your fork so if your gut says don't do it then don't do it.
#askgmbntech i watt to by a dh bike but i can’t decide if i am going to buy a 2016 canyon tourque dhx rockzone or a 2016 specialized demo 8 alloy. The tourque has beter parts but it has 26 tiers and it seem to me that it’s going to feel a bit out dated. They are around the same price and i sant to try some racing
Nah man 26 tiers are fine, I know lots of people who still ride 26 on dh bikes. I would personally get a 27.5, because I am tall and they just feel right to me. I think you should get the one that makes you feel more comfortable, who cares is it's outdated? However, I guess 26" on dh is better for parks, ramps and jumps and freeride stuff. If you ride trails and roots and rocky stuff and you wanna goes fast as fuck 27.5 might feel better.
10:37 not all chains are long enough for 11-46T with big jockey wheels in rear dérailleur, and 36T round ring, and long chain stay, with my bike I would have to do that too. but I run 11-46T x 34T oval, with Box One. I don't have top cut make the chain longer, but if it was a round ring I would need to, that would be 36T round ring. it's 114 link KMC chain, the chain stay is 450mm. if I ran 11-50T I would have to make it much longer but I think I will go for E13 TRS PLus which is 9-46T, and go down in chainring size, I won't have to make the chain longer, and setup will be lighter, and I will have bigger range. So the in summery: longer chain stays bigger jockey wheels bigger chainring bigger cassette
#askgmbntech - Hi Doddy. My son is just getting into MTB and has his 1st MTB but he keeps slipping on the peddles - is it best to upgrade the peddles first or his shoes as he is just using trainers. FYI I'm a road cyclist but loving my rides out on the single track, might have to brush down my old Treck ZX 7000 - PS I think we saw you at Bedgbury on NYE?? - Thanks.
#askGMBNTech Hi Doddy, my freehub body is getting destroyed by shimano cassettes and it'll be needing replacing soon. It is a MAVIC TS-2, I'm thinking in change it for a ITS-4 as they look quite the same, but with 2 more points of engagement. Are they compatible?
#askgmbntechI'm right between a M and L on sizing. Still not decided on bike yet (definitely full sus though). Would getting a M frame on a 29er make it more nimble, easier to maneuver, similar to a 27.5 L frame?
If you want something that is easy to maneuver, get an M 27.5. If you want to climb and do xc stuff, get a M 29. I think that smaller is better if you want to be able to flick the bike around.
#askgmbntech I can't manage to get my brake calipers aligned. I've tried the hold the lever method, sighting it and pushing the pistons back but they are still rubbing. HELP. BTW they are new Shimano organic pads.
Is the rotor bent? If it is maybe that's the problem. Or maybe your wheel is not placed as it should be. Does it rub always or just in a certain point od rotation of the rotor?
VIDEO IDEA: do a competition to see which presenter can make the most bombproof ultra strong set of wheels for less than an Envy set of wheels. I personally would love to see this because I go trough wheels like candy when I ride DH and I’m looking for a solution.
@@Jack_Sin_Schlussel which ones? I've seen pro riders riding with flat tires without destroying the rims. You must be one hell of an aggressive rider :) !
@@WilliamCronin fr570, I put a weird flat dent in the rim and put the wheel into a wobble . I did this in my "crash on Bonesaw" video, but I think the dent came from somewhere else. I think Im just bad at line choice.
thanks man. i've been really soaking up those videos most evenings for the last weeks, giving me much more confidence of understanding whats going on with my bike!
#askgmbntech Doddy, you guys regularly seem to agree that 140mm is perfect for trail/bike parks, Neil and Blake both ride the Scott Genius, when would you/they swap the 150mm Genius for the new 170mm Ransom which is similar progressive geometry, actually a steeper seat angle and only slightly heavier? I've only ever had/have XC race bikes; 100mm HT, 90/100mm FS so really struggling to choose a bouncer!
#Askgmbntech i have just brought a maxxis minion dhf 2.6 i currantly have rims with a 23mm internal width so wondering if the tyeres will be to fat for the rims also i have a rockshock xc30 fork wondering if they will fit ,love the show
They will fit on the rims, but you'll be pushing it and the profile will be far from ideal. Also, I would buy a (second hand/discounted) burlier fork for those tires.
#askgmbntech I have a 2015 Giant Reign 1, all origonal and not often ridden, but I want to get out on the trails more. I'm over 110kg with gear and pack on, so quite heavy. When I try and setup my rear shock, the sag is 35-40% at 300lb shock pressure - will putting more bands on the shock drop the air volume enough that I don't have to use so much pressure in the shock, or should I consider going to a metal spring shock with a hard spring?
#askgmbtech . I ride in Friuta Colorado and Moab Utah. Hit my cranks and peddles on rocks a lot. Is there a disadvantage to going to a shorter length crank say 170 mm or 165 mm, to gain crank distance from the ground.
#askgmbntech From one Andrew to the other, I'm needing a new bike so I'm going to go for a 27.5 Enduro bike for racing, what bike would you reccomend for the £2000-£3500 price range... any help would be great!!
#AskGMBMTech : Can I upgrade my 10 speed Shimano cassette to a 12 speed SRAM NX cassette without having to replace the freehub body? I know that the NX uses Shimano freehub splines, but I'm wondering if the freehub body needs to be wider.
Hi, Could you do a XC tire comparative? It would be very useful. I have doubts between Schwalbe, Kenda and Maxxis. Would it be convinience to change the Schwalbe tires that came with my Cannondale F.Si carbon 4 ? Thanks you a lot!
13:55 ... Is Kashima worth it?
00:30 ... minimum tire clearance
02:18 ... front chainring size
04:16 ... 29 vs 27.5
06:54 ... lithium grease
07:57 ... tubeless without sealant
09:22 ... lower leg service without removing the fork
10:10 ... master links strength
11:00 ... sticky brake pistons
12:30 ... bent rims lifetime
13:55 ... is Kashima worth it?
thanks, a lot
ohh thanks!!!
Thanks but you listed kashima twice
You’re my god
Thanks
Kashima makes you feel superior to other riders therefore justifying spending your kids inheritance
Fr
Please please please have Doddy give a sort of “MTB Geometry 101” video. I think most people know just enough to make semi-informed decisions about their frame+wheels choices.
I second this
Minimal tire clearance is about 1,5mm. How do i know? Running a 26in frame (very stiff XC frame) with 27,5in wheels. So far i have not run into problems.
Also, Kashima: It looks nice, otherwise it's marketing buzz.
I believe the slower breaking of 29er bikes is due to the laws of physics.
Same brakes, same rotors, bigger leverage ratio.
Yup, you got that right.
Exactly
Thats why you use TRP 223 Rotors
@@natejohn8795 😳 223 is PHAT
Happy new year! I prefer the look of the black anodized performance personally. Not sure the cost to performance ratio is worth it on the Kashima.
You my friend and I were literally just talking about this, and the conclusion we came to;
Of course not, but it sure does look good.
#askgmbntech I've recently baught a Calibre triple b but I also own a giant anthem x1 2009. The giant is upgraded and much lighter than my Calibre so it's still going to get used however I feel that I've outgrown the bike. My calibre has 800mm bars and the giant has 660mm bars, will the wider bars make me fit the giant better? And would a shorter stem be able to give it more of a 'trail' feal to the giant? Ta Sam
13:00 - that face shows how Doody "enjoys" fixing Blake's wheels.
#askgmbntech
Can I put DMR’s extra long shin tearing pins on my Crankbrothers Stamp 3s?
The pins and threading look nearly identical but they also look about the same in terms of length. DMR sells the pins for less money so it could be worth a try but it’s usually best to stay with the crankbros brand pins.
Do it. If they don’t fit you can always return it.
#askgmbntech
Can a full suspension bike be to progesive? The advantages of progression seem great more supple at the start and firms up at the end to reduce bottoming out. However some bikes have been released with stupid amounts of progression. For example the Yt Tues.
If it prevents you from using all the travel or makes the bike harsh when it's deeper into its travel, yes
Don't a big fan of kashima coat but they look cool if you ask me
11:00 i did break bleed and it didn't help :( (DOT fluid was clean like new one). Tried to use DOT fluid on pistons to make them move better also didnt help :(. Looks like i will have to take them apart and clean everything :(
Ive been riding 29er in South Eastern USA for 12 years. We live in heavily forested areas. Our trails tend to be tight and twisty. Ive never felt I lost anything leaving 26 for 29 but I do feel like Ive gained a ton in ability to roll over stuff that required a ton more finesse on a 26 and massively increased stability at speed of 29. Easy way to understand the stability offered from a 29 is when inflating tubeless tires. After inflation, I spin the wheel parallel to the ground to try and spread out the tubeless fluid. As the wheel and tire rotate, try turning the wheel horizontal to the ground. Its nearly impossible as the wheel rotates quickly. Now try it with a 26 wheel and you easily see what the stability difference of the 29 wheel is.
Why does my non-drive side crank arm keep loosening? I can't tell you the wattage, but I did make sure it was clear of Grease. Is it because my lead foot is non-drive side? should I learn to bunny hop with Drive side in lead? If I go over torque specs on the eagle crank arm the cranks will drag during rotation.
SRAM has a recall on those brakes right now for that issue. Check with local bike shop. They did mine at no charge and updated my brakes. My bike is a 2018 though...
Its an issue with the o-ring the master cylinder
I had that issue to. SRAM replaced both of the calipers
#askgmbntech Hi guys love the show,here'smy question, With the price of high end mountain bikes unaffordable for most without finance,what would be your top tips for buying second hand an some of the things to check an look out for, would you recommend buying an entry level new bike or a higher end second hand one.
Either get an entry level that's easy to upgrade (tapered headtube, disc brakes, etc) over time. Or get an a-mazing bike on ebay. If you search really hard, you'll find a great deal. Just check over the bike when you collect it.
even "entry level" is getting expensive now.
Hey bungyjack, we're looking to do a whole feature on just this, so keep an eye out for it!
@@gmbntech great,an thanks for the swift reply,look forward to seeing how you guys approach the subject an keep up the excellent work guys
@@dustinnoyfba7227 true that
One of the other reasons that Nino likely runs Eagle with a bigger chainring up front is that the chain is more efficient (less power lost) when it is not forced to make tight bends. So it's more efficient to run a large chainring and a large cog than it is to run the same gear ratio in a small chainring and small cog. At the pro level these guys are at, those couple of watts make a difference.
What an absolutely good points about wheel size...I hadn't considered the rolling momentum of the 29 as being likely the attractive part of climbing on a recent 29er demo.
I am on the shorter and lighter end 5'8" 140lbs and feel a 27.5 just fits.
I am most comfortable on a 26er though as I'm still rocking a 2011...ehem Mongoose whilst I save...
I'm not able to demo a 27.5, our local store is against them lol...no idk they don't have any though.
Today during the ride I realized I was so much faster on my bike because it was my bike... small wheels and all.
I'm going 27.5 i think though
Dude, love the minute machine Oakley watch. Super rare. Don’t ever sell it!
Never snapped a master link. Snapped plenty of regular links though lol just personal experience
I believe they are designed to be stronger than normal links.
Finally a straight answer and good explanation on Kashima coating, thank you!
I would imagine the 4 quick-links is due to multiple chain snaps...so well overdue new chain (and probably cassette and chainring if the chain is that worn out). I suppose the snapping could also be due to bad chain-line or something bent. Definitely something hinkey with the drivetrain.
SRAM sticky brake postons. (EDIT: Problem is piston in lever not the caliper.) SRAM warranty issue!! I had same issue. Free replacement from SRAM through local bike shop in USA. Mine is off a 2015 model. I'm not sure what years were affected.
Late with this comment but anyways: Doddy says Kashima coated needs a lot less maintenance then those with black stanchions. Well I do not know if that is only with the black Stanchions. I am riding Fox40's with the silver stanchions (coil Fox40 from 2012). I service my Fox40's once a year. They still performing perfect. So I think this Kashima talk is just marketing..... As in my case I proof Doddy wrong.
I had my showa dirtbike suspension legs out for a new valving and coating the guy at the shop advised against sending them to Japan and to just go for the black DLC, in his words:
"you have to drive trophy trucks to have a noticeable difference over the heat generated, imagine on mountain bikes how useless this is, maybe for those crazy downhill guys"...
#askgmbntech I have the SRAM Guide RE brakeset on my Whyte G180. When cornering I hear the pads rubbing against the discs, mostly on the front. It doesn't even have to be on the trailside, it could simply be when commuting and soft cornering. Surely this isn't normal?
If you can't excel at mountain biking without special coatings, and $1,000 + suspension forks... you shouldn't be mountain biking. Like damn, just enjoy the challenges the trail gives you. You accelerate your potential when you actually put YOUR skills to the test. Be a great mountain biker with a great bike, not an inferior mountain biker with a great bike.
The simple reason why "Doddy" likes big 29" is that he is a tall dude. I with my 172cm or about 5,6-5,7 feet think that large wheels are too cumbersome/slow when you need to react fast. For the an Optimal bike fit all bike manufactures should drop the 26, 27, or 29" fixed wheel sizes and offer a wide variety of sizes dependent on the size of the biker. For an example look how odd looking a frame becomes in xs or xl sizes. I even am looking to see if there is a way to go down a size like 24" with Plus size tires.
#ASKGMBN Hi guys, I need your help. I'm about to buy a new enduro bike and I'm between the new YT Carpa 27 comb and the Propain Tyee ( the combo I choose for tyee is fox fork and rear suspension, kindshock dropper post, gx, cura 4 breaks and newmen evolution sl A wheels. ) What's your opinion about this two bikes ? The better suspensions and wheelset worth the extra 600€ for the Tyee? It's my first enduro and I want to make the correct choice.
#askgmbntech I have the budget SRAM NX groupset on my Whyte G180 and my 11th gear keeps dropping down and then returning. All other gears are fine though. What is your solution?
Hi doddy what's your thoughts on bolany front suspension forks as I'm thinking of buying them as they seem slightly more expensive than the rockshox rebound shocks as I'm doing a full rebuild on my MTB retro style Claude butler bike with 26 inch down hill wheels and brand new parts on my MTB retro style Claude butler bike with a brushed aluminium frame. Hope to hear from you soon please on the bolany front suspension forks. Thanks from Mark from the UK England
#askgmbntech I have the RockShox Super Deluxe Select + on the rear of my Whyte G180. When under compression, the initial stroke makes a 'squelching' noise that doesn't exactly inspire confidence. Is there a reason or even a fix for such an issue?
#askgmbntec hello doddy I am riding a specialised stunt jumper 2007 I am buying a new bike this year. I am into big jumps and drops but my bike cant take the jumping and crashing. Also im this year im starting endroe races. 80% of my riding is dh things and jumps. What bike would u recommend and do u think the canyons toque would do the job? Love the vids keep it up [ ps i have 3k to spend plz don't meshen on vide
Fox Kashima lasts longer? WTF are you on? There is ZERO difference whatsoever in performance between that and the black coating and the Kashima wears sooner and there is ZERO difference in time between services. Nobody can tell the difference in a blind test between the two, not even Greg Minaar it is pure marketing bollox.
Love the show guys, thanks!
29 vs. 27.5... anyone else feel it’s simply more of a personal preference for most of us non-pro riders?
Yep
Im actually riding 26 inch wheels(older ibis mojo)
Doddy is spot on about the two wheel sizes and most importantly how the bike fits the rider. I think there is something to be said about making tight turns on switchbacks though. 27.5 may handle this better. I think it greatly depends on where you ride most and rider fit. 29er seems to keep its momentum going with fast rolling tires and also rolls over the bumps better. On my 29er, often on switchback trails I unclip one foot and us it pivot when it makes sense. Since I ma tall I also just like the overall fit.
#askgmbntech i have a decked out trek 800 90s steel frame. fsa componets and stuff. all are xc. what old steel frame or new could i swap out. what would doddy do? like all my com[ponets except the frame are nice and could make a siiiiick xc/gravel bike if i only had a reasonably cheap old frame, like an explosif, or gt something.
What's the difference between Dry lube, Wet lube and all weather lube? Also what are the advantages / disadvantages to chain wax compared to using lube?
#askgmbntech I use a cycle-specific pressure washer to clean my bike with all the trimmings such as a foam lance. Once I have completed my cleaning regime what can I do about keeping my bottom bracket lubricated without removing it and my cranks?
#askgmbntech
Hi, I just bought a new bike but I have a question about my disc brake.
When the bike arrived the rear brake was perfectly alligned, but the front pad was rubbing really hard. I fixed that and there was no rubbing.
Today while riding I heard the pad touch the rotor slightly when cornering and leaning the bike while riding fast.
The rotor is not bent, and this does not happen when I ride normally.
It does not slow me down, but I wonder if that is ok to happen.
Sounds like flex in the fork tbh, if it's a single crown fork especially (and with the newer 15mm standards axles, a downgrade from 20mm imo) you are going to get a certain amount of flex in extreme conditions. If you paid thousands of £££s then you would expect this to be minimal and only apparent under very extreme loads, but in the middling priced & cheaper end of the market such flex is more common under load (but nothing like what we used to have to put up with back in the day). I wouldn't worry about it too much, just keep an eye on it & if it gets worse take it back and have a word with your supplier.
Wheel diameter: probably you want to concider the ratios of the diameters of wheel to disc rotor
Exactly
Eh? Older frames Especially non Carbon frames which are all the rage at the moment have more tyre clearance (+plus tyre frames aside). Not only that many older bikes and indeed cheaper aren't designed to run strictly 1x meaning you have even more tyre clearance. If your riding a steel frame just put the biggest tyre you can in there and off you go as they have smaller dia' tubing and are far tougher.
Turbo Levo 2018 battery has recently gone up from around 800 to 1200 at my lbs im not happy about this. But there must be a reason for this. Im tempted to buy 2 2020 Turbo Levos then iv got spare battery for longer rides and also may use one for parts.
Is it me or this looks tasty? (12:25)😂😂 Like orange Ice-cream or something like that
You don't grease fox dust-wipers. You also shouldn't be using WPL in the lowers. It feels like crap.
#askgmbntech is storing my MTB in my shed over the winter (20deg.) bad for it? What components are likely to be affected by very cold temperatures?
Cold is not an issue. Just make sure your chain is lubed well. Also, hanging your bike by the front wheel is best. If not, then turn upside down for 30 minutes to an hour, before you ride it again in Spring. This will let the fork oil get back onto the wiper seals at the top of the lowers, so they slide nicely. Cheers.
Won't hurt the bike at all
11:14 once my pisten wherent returning on my mt5 and i had do much oil in the system. I opened it at the bleed port and pushed the pistons back and some oil cane out and i never had an issue again.
Hi i have mt5 brakes on my trials bike. I have to bleed them often. Mostly just bubble bleed by sticking a seringe in the bleedport. Bit of oil in and get the air out. But the rear brake needs way more attention. And after a full bleed, the lever feels so different then after a full bleed on the front brake, so i always bubble bleed after full bleed (on the rear), when everything is installed back, so the levers will feel the same.
Also i get the feeling air comes in via the piston seals, by sideways piston movement by shocks (up to rear, rear brake gets lot of stress)
They are fine brakes, but need lots of attention
This is the first step to do if the pistons are not fully returning. And I'm saying that as a bike mechanic 👍
@@plaicknaa yes. For me it worked out fine and i never hade a problem with it since i did it. It works like out of the box.
You have to be careful though! Sometimes the pistons just stick and you have to do exactly what doddy said in the video. If you try to push them back and they come back out it means that there's a little bit to much oil in the system
@@plaicknaa in my case i had to much oil in the system and opened the bleed screw at the lever body and then pushed them back. Some oil came out and they worked like new. I did it because there was so much oi in the system that the brake braked all the time
Hey Doddy! I’m looking at a new enduro/trail bike, my budget can’t get a top spec carbon bike. Do you think it’s better to get a top spec (suspension) bike in Alu over a lower spec bike with a carbon frame. (Bike I’m looking at is a Commencal)
Thanks! Really enjoy the show
Alu high spec.
For $100, I really hate when brands spec the 34/36 performance and not factory...
How often should I service my fox 34 performance. Thanks
The friend that runs Kashima is always the slowest in the group.
Kashima is gold anodizing. The same as black anodizing you paid for nothing
And he just said he doesn’t feel a difference He’s literally telling lies on behalf of fox
Kashima is ugly unless you got hubs and dropper the same color. I went with black 36.
Is there opportunity for damage to the front rim/wheel when hanging from a padded hook on the wall? I have DT Swiss E1700. Thanks
How did it get damaged? Just by hanging?
Hey so in another newer video you said you can run tubeless tires without seal it and you shot straight to a clip right after saying that which made us viewers assume that you were riding that way. This video you advise against it so which is it can you or can't you? I am more or less just curious I wouldn't do that myself
But is the title representative? No... not at all. I love these guys, but this is one of the few videos in which the title represents about 5% of the content; It feels like a bait-n-switch
I certainly don't feel perched on top of a 27.5 Capra or 26" Commencal meta! That feeling is all down to the frame geometry not wheel size.
@gmbn did you ever do that piston clean video you said you were going to do? I cant find it and think i have same issue, i have xo brakes and i did a solid bleed with new pads, but the both sides of pads are way too close and rubbing against the disc not sure whati done wrong as the back one is fine but not as immediate as the front, did i bleed it with too much fluid? If thats possible #askgmbntech
Of course!! It is frigging cold!! Like wearing a gold watch!
Pop an oil rag in your drip tray. It helps prevent oil from splashing everywhere.
#askgmbntech
Hi!
Thanks for a great channel!
I have a question regarding brake pads, I am rather clear on the characteristics of the organic, semi-metallic and metallic versions but what about kevlar disc pads? Any experience? Where do you put them (character wise) compared to the other three?
i like the fox factory over any other suspension, mainly because of the grip 2 but also the kashima is quite nice. on my dh bike i have fox factory 40s and on my enduro bike i have fox factory 38s and on my dirt jumper i have fox factory 36 dj and on my trail bike i have fox rhythm 34s but the factory kashima just feels nicer even on my dirt jumper, but mainly it just looks better i havent had these bikes long enough to notice the longevity
因为中国都吹kashima
My suspension fork stops working when it is 15 °C or lower. What should I do
#askgmbntech Is overheating of the Brakedisc or Brakepad a problem when racing XC? I can understand, that Brakes can overheat in downhill racing, but in an XC situation you don't brake for long periods of time. Are overheating brakes something to pay attention to for an XC rider. Thank you
I am not sure, but if you ride some downhill after climbing that xc bike, it's normal for the brakes to be hot af. If you want them to stop getting hot that fast, a larger disc should make the getting hot process slower.
#askgmbntech I´m interested in the breaking characteristics of carbon vs aluminum. Would love to see a video where breaking a carbon vs aluminum frame, handlebars etc is demonstrated. I have consciously stayed away from carbon because I´ve been told it just snaps when it breaks instead of bending like aluminum or steel, seems unsafe imho. Thanks for all the great content!
ruclips.net/video/w5eMMf11uhM/видео.html
Carbon is generally stronger than aluminum but yes, it can fail and when it fails it fails catastrophically.
William Keys Thanks! That’s pretty much what I heard. I guess snapping a pair of handlebars would be quite awful compared to bending...
MTB loaf ive seen aluminium bars snap just as well.
Hey Doddy, you seem to have some good insights on the effects of various geometry changes in mtb's. It would be interesting to see a video about; symptoms of maladjusted geometry to look out for, effects of various geometry changes the rider can make, explanation of the impacts of fixed geometry items (wheel size, seat tube angle, head angle etc).
This information would really help riders determine the range of geometry specs which will suit their style when looking at upgrades.
A good example is handlebar length, rotation, height, angle, thickness, stem length. It's difficult trying to speculate on how changes will affect the characteristics of the bike.
Keep up the great work and thank you.
#askgmbntech hi! I have Shimano hydraulic brakes on my bike and i was wondering if it is ok to use other mineral oil brands in my brakes instead of the shimano oil? I got some mineral oil at the car parts store and i can't see any difference to the original oil (except that the mineral oil i bought is green instead of red...). Is it ok to bleed my brakes with brake oil that was originally meant for cars or can it be harmful for my bike?
Thanks and greetings from Finland!
Now this is an interesting question
While DOT fluids adhere to the same standards, "mineral" fluids vary wildly. For example, Magura Royal Blood has a boiling point of 120 degrees Celsius, while Shimano brake fluid has a boiling point of 280 degrees Celsius. Viscosity levels also differ and additives in mineral brake fluid for cars might damage seals in bicycle brakes. I wouldn't take the risk for the 25 bucks a liter of Shimano mineral oil costs (likely enough for a lifetime).
Mostly for looks only. The color of the anodizing doesnt change anything.
#askgmnbtech hey Doddy! I removed the outer sleave of my RockShox Monarch plus shock, to see the conditions of it, and some oil dripped. Is this normal? I've seen many of your videos showing how to remove the sleeve to ad volume spacers and so on and I never seen oil dripping or this being mentioned in the video. Thanks!
IMO Kashima sounds better and that makes it worth the extra 100 lol
#askgmbntech should i clamp on my dropper post? If not where should I clamp my bike from? Love the show keep it up
Clamp it, I have done it on many bikes over many years. Just put a shop rag in between the dropper and clamp thingy.
Yes, clamp it, but just make sure it is fully extended first! No worries.
Callum Rose should I clamp it in its position or loosen the stand clamp at the back so it falls in it’s natural position?
@@taranjohal4790 if you are clamping it in a position that is not natural such as horizontally it is fine as long as you don't leave it in that position for a long time.
Just remember it is just as delicate as your fork so if your gut says don't do it then don't do it.
Callum Rose thanks for the advice
Can you recoat worn stanchions? As mine are little worn and not sure what to do to keep them from getting worn down ?
#askgmbntech i watt to by a dh bike but i can’t decide if i am going to buy a 2016 canyon tourque dhx rockzone or a 2016 specialized demo 8 alloy. The tourque has beter parts but it has 26 tiers and it seem to me that it’s going to feel a bit out dated. They are around the same price and i sant to try some racing
Definitely avoid 26" tires. 27.5 is a minimum.
Nah man 26 tiers are fine, I know lots of people who still ride 26 on dh bikes. I would personally get a 27.5, because I am tall and they just feel right to me.
I think you should get the one that makes you feel more comfortable, who cares is it's outdated?
However, I guess 26" on dh is better for parks, ramps and jumps and freeride stuff. If you ride trails and roots and rocky stuff and you wanna goes fast as fuck 27.5 might feel better.
Found a gambler 730 thats been going as a rental bike that i think i will go for because i want something little more playful.
NOT AN IDEAL SITUATION
10:37 not all chains are long enough for 11-46T with big jockey wheels in rear dérailleur, and 36T round ring, and long chain stay, with my bike I would have to do that too.
but I run 11-46T x 34T oval, with Box One. I don't have top cut make the chain longer, but if it was a round ring I would need to, that would be 36T round ring.
it's 114 link KMC chain, the chain stay is 450mm.
if I ran 11-50T I would have to make it much longer
but I think I will go for E13 TRS PLus which is 9-46T, and go down in chainring size, I won't have to make the chain longer, and setup will be lighter, and I will have bigger range.
So the in summery:
longer chain stays
bigger jockey wheels
bigger chainring
bigger cassette
kashima is not a real thing it's just aluminum dye. Ask an engineer or chemist.
Why is there not a name for bikes that can do both 29 and 27.5 and where can I find a list of them
13.54 Kashima question. skip ahead
#askgmbntech - Hi Doddy. My son is just getting into MTB and has his 1st MTB but he keeps slipping on the peddles - is it best to upgrade the peddles first or his shoes as he is just using trainers. FYI I'm a road cyclist but loving my rides out on the single track, might have to brush down my old Treck ZX 7000 - PS I think we saw you at Bedgbury on NYE?? - Thanks.
I have my son on crank bros eggbeaters with shoes.
#askGMBNTech Hi Doddy, my freehub body is getting destroyed by shimano cassettes and it'll be needing replacing soon. It is a MAVIC TS-2, I'm thinking in change it for a ITS-4 as they look quite the same, but with 2 more points of engagement. Are they compatible?
Use cassettes with a proper spider/carrier (XT or above) and check torque when installing.
#askgmbntechI'm right between a M and L on sizing. Still not decided on bike yet (definitely full sus though). Would getting a M frame on a 29er make it more nimble, easier to maneuver, similar to a 27.5 L frame?
If you want something that is easy to maneuver, get an M 27.5.
If you want to climb and do xc stuff, get a M 29.
I think that smaller is better if you want to be able to flick the bike around.
They should put a new presentor that does the explanation more clear
#askgmbntech I can't manage to get my brake calipers aligned. I've tried the hold the lever method, sighting it and pushing the pistons back but they are still rubbing. HELP. BTW they are new Shimano organic pads.
Is the rotor bent? If it is maybe that's the problem.
Or maybe your wheel is not placed as it should be.
Does it rub always or just in a certain point od rotation of the rotor?
VIDEO IDEA: do a competition to see which presenter can make the most bombproof ultra strong set of wheels for less than an Envy set of wheels. I personally would love to see this because I go trough wheels like candy when I ride DH and I’m looking for a solution.
cush core m8
DT Swiss DH wheels with inserts.
@@macvos I already destroyed my DT swiss wheels.
@@Jack_Sin_Schlussel which ones? I've seen pro riders riding with flat tires without destroying the rims. You must be one hell of an aggressive rider :) !
@@WilliamCronin fr570, I put a weird flat dent in the rim and put the wheel into a wobble . I did this in my "crash on Bonesaw" video, but I think the dent came from somewhere else. I think Im just bad at line choice.
鹿島コート made in Japan!
"a lot longer"? Can you please define with an actual number what you mean by "a lot"?
All depends on how often you service it but I’ve very rarely seen stanchion wear on Kashima coated forks but get a lot of worn black anno ones.
kashima coating is overrated.
hey dotty was just wondering can you put a 1 1/8 - 1 1/5 tapered fork in a 1 1/8 1 1/2 head tube ? buliding my first bike an abit confused cheers!
I have never seen a 1 1/8 to 1 1/5 tapered fork. You're sure it isn't 1 1/8 to 1.5 (which is the same as 1 1/2) ?
thanks man. i've been really soaking up those videos most evenings for the last weeks, giving me much more confidence of understanding whats going on with my bike!
#askgmbntech
Doddy, you guys regularly seem to agree that 140mm is perfect for trail/bike parks, Neil and Blake both ride the Scott Genius, when would you/they swap the 150mm Genius for the new 170mm Ransom which is similar progressive geometry, actually a steeper seat angle and only slightly heavier? I've only ever had/have XC race bikes; 100mm HT, 90/100mm FS so really struggling to choose a bouncer!
#Askgmbntech i have just brought a maxxis minion dhf 2.6 i currantly have rims with a 23mm internal width so wondering if the tyeres will be to fat for the rims also i have a rockshock xc30 fork wondering if they will fit ,love the show
They will fit on the rims, but you'll be pushing it and the profile will be far from ideal. Also, I would buy a (second hand/discounted) burlier fork for those tires.
Thumbnail picture is 👌
#askgmbntech
I have a 2015 Giant Reign 1, all origonal and not often ridden, but I want to get out on the trails more. I'm over 110kg with gear and pack on, so quite heavy.
When I try and setup my rear shock, the sag is 35-40% at 300lb shock pressure - will putting more bands on the shock drop the air volume enough that I don't have to use so much pressure in the shock, or should I consider going to a metal spring shock with a hard spring?
#askgmbtech . I ride in Friuta Colorado and Moab Utah. Hit my cranks and peddles on rocks a lot. Is there a disadvantage to going to a shorter length crank say 170 mm or 165 mm, to gain crank distance from the ground.
Shorter crank means less torque.
#askgmbntech From one Andrew to the other, I'm needing a new bike so I'm going to go for a 27.5 Enduro bike for racing, what bike would you reccomend for the £2000-£3500 price range... any help would be great!!
#AskGMBMTech : Can I upgrade my 10 speed Shimano cassette to a 12 speed SRAM NX cassette without having to replace the freehub body? I know that the NX uses Shimano freehub splines, but I'm wondering if the freehub body needs to be wider.
please tell me all those park tool tools arent just for show
#askgmbntech has anyone from GMBN presenters ever owned or has any opinion on Specialized stumpjumper?
#askgmbntech Doddy i have a specialized pitch comp and it’s a 3x9 is it worth converting to 1x11 and if how much will it cost?
If you want some good stuff, a lot.
Hi, Could you do a XC tire comparative? It would be very useful. I have doubts between Schwalbe, Kenda and Maxxis. Would it be convinience to change the Schwalbe tires that came with my Cannondale F.Si carbon 4 ? Thanks you a lot!