Questions tagged [drivetrain]

Questions about a bicycle's drivetrain system, including the chain, gears, chainrings, derailleurs, etcetera.

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Trainer quieter after swapping cassette; is there a better solution?

I recently got a Wahoo Kickr Core. All working great, except the drive train is a little noisy. I thought the easiest thing to do would be to try the cassette from my bike wheel on the trainer. The ...
OliverRadini's user avatar
4 votes
1 answer
296 views

Converting Belt Drive Bike With Paragon Sliders to Conventional Cassette

My internal gear hub broke on tour in Kenya, and now I'll need to convert my bike to use locally available parts. The frame uses Paragon Machine Works sliding dropouts who makes inserts which would ...
Laoshi's user avatar
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2 votes
1 answer
148 views

Will a Shimano Deore 11 speed chain work on a SRAM NX 11 speed drivetrain?

I went to a bike shop today and got a complete service and new chain. When I looked at the tax invoice, it said it was a Shimano Deore 11 speed chain, however I have SRAM NX 11 speed drive train. I ...
Jason's user avatar
  • 21
1 vote
1 answer
123 views

Crank set pairing with cassette

I have a 50-32 crankset (165mm Crank arm length) and an 11-32 cassette. I'm having difficulty when I switch up to the 50. I do Sprint Triathlons as an age grouper (70-75). Additional information: I am ...
Keith Britany's user avatar
0 votes
1 answer
80 views

I put my bike on the bus and now the chain can't stay on

I've never had an issue with my chain falling off until today. I put my bike in the bike holder in front of the drivers window. Perhaps something got knocked or moved? I could have a dirty cassette or ...
Tim 's user avatar
  • 1
4 votes
1 answer
184 views

Are all top of the line components always compromising on durability in order to save weight?

It often written that top of the line components are less durable (Dura-Ace and XTR for Shimano), with the explanation that they meant for competition and so they compromise on durability to save ...
Renaud's user avatar
  • 19.1k
6 votes
3 answers
2k views

Does a 3x to 1x conversion make sense for this bike?

My daughter was given a 26" hardtail with a slightly weird setup to use as a utility/commuting bike by a guy whose hobby was to build up bikes from old but unused parts... the crankset & ...
Saes's user avatar
  • 163
1 vote
1 answer
257 views

Running DUB wide crank with 52mm chainline

I have a set of sram xx1 carbon cranks that are DUB wide. My bike (2023 Specialized Epic Evo) is DUB crank 52mm chainline. If I add BB spacers to the DUB wide crank and use a 6mm offset chainring ...
Derek Ryan's user avatar
2 votes
2 answers
936 views

Cues U6000 and Deore M5100 11 speed compatibility

So we have two basically the same looking and working derailleurs: Shimano u6000 and m5100. They have different pull ratios. The question is if friction shifter would allow me to mix "old" ...
guyfromthesun's user avatar
2 votes
2 answers
137 views

Specialized Stumpjumper Women's HT 2006 Worth Rebuilding Back Up?

I absolutely love my Specialized Stumpjumper HT 15.5 (26" wheels), so light and nimble - a dream for single-track and general xc trail-riding (and nice and nifty for running around town too) but ...
Ali Bee's user avatar
  • 21
7 votes
4 answers
943 views

Tricks for finding tick tick noise while pedaling

I’ve been trying to get rid of a ticking noise. I think my next steps are: a) check the chain ring for damage, and/or b) Check the chain for damage, and/or c) look for frame cracks I don’t have ...
Andrew Codrington's user avatar
2 votes
2 answers
366 views

Are freewheels compatible if they have the same number of sprockets and teeth?

I'm a novice to the cycling world and am wanting to learn to do my own maintenance, so I'm quite unsure of a few things. More specifically, I have a Dahon Eco C7 foldable bike that I got used and was ...
Iceape's user avatar
  • 123
4 votes
1 answer
118 views

Gun bluing chains

Is it possible to hot blue chains for rust protection? I surmise there would be parts of a bike chain that are made using hardened steel (e.g. rollers and pins). Would this process affect their temper?...
Gregory Leo's user avatar
  • 1,295
4 votes
1 answer
339 views

New chain coming off under torque

I replaced the chain recently - the new chain unships violently when I apply a moderate amount of torque, such as when setting off standing. As in, it comes off the big ring to the outside (i.e. away ...
BenTaylor's user avatar
  • 173
2 votes
1 answer
89 views

Unable to backpedal - jockey wheels on Campagnolo derailleur

I have Campagnolo Athena rear derailleur on my road bike. Never gave me a hint of trouble. Always kept clean and lubed. Never ridden in the rain or in dirty conditions. Yesterday I was not able to ...
gil's user avatar
  • 51
2 votes
1 answer
104 views

Does this chain seem short? Does this photo indicate any obvious drivetrain issues?

Addition. Yes this is the large-large chainring. The shifting is rather poor but I have not tuned high, low and B, tension etc. Thank you I recently moved to a larger chainring. The shifting seems ...
Moishe Rokach's user avatar
6 votes
5 answers
1k views

Training vs increasing gear ratio

I’ve just done a 1500km ultra cycling event, the lowest gear setup are front 30t back 40t. Along the journey there are many very long climbs that have more than 10% gradient. To conserve power I ...
Heykal's user avatar
  • 189
1 vote
1 answer
59 views

How do I find replacement parts for my 1988 Suntour drive train?

I am resurrecting my old commuter which was basically a hard-tail MTB c 1988 with a 3 x 7 Suntour system. What's the least painful method (leaving shifters and derailleur intact) to replace the worn ...
Andy W's user avatar
  • 11
3 votes
2 answers
379 views

How can I increase ebike drivetrain reliability?

I'd like to improve reliability and have fewer problems with my drivetrain. What more can be done? I have an electric bike. I only ever use the six smallest sprockets on the 12-speed cassette, even ...
Tom Brossman's user avatar
1 vote
1 answer
67 views

Will 7-speed MicroSHIFT work with 9-speed shimano cassette?

I am building out a marketplace bike. It came with a MicroSHIFT derailleur and had a 7-speed cassette on it. I want to put a 9-speed shimano cassette on and still use the MicroSHIFT derailleur. Are ...
duhnlic's user avatar
  • 151
6 votes
1 answer
469 views

Is it acceptable to have some noise on largest sprockets?

There is some chain noise on the two largest sprockets on my friend's road bike. It's not a skipping noise and not on a cross-chaining gear. Do you think it is ok to have noise on these sprockets or ...
Ender's user avatar
  • 1,514
2 votes
2 answers
433 views

Compatibility of Microshift BS-M10 10 speed friction shifter with 11 speed derailleur?

As you know it’s very hard to get any modern bar end shifters right now. Unfortunately I love them. I have an opportunity to buy Microshift BS-M10 shifters which are meant for 10 speed shimano ...
guyfromthesun's user avatar
1 vote
1 answer
76 views

Can't keep new drivetrain from clicking and jumping

Recently I replaced crank, chains and cassette on my about 4 years old trekking bike. All parts are low priced Shimano parts, just as the ones I replaced. New crank and cassette have lesser numbers of ...
Erik's user avatar
  • 169
1 vote
0 answers
31 views

Odd chirpy noise, not chain or pulleys

So I have this familiar chirpy/twittery noise coming from drivetrain. It is under load on a down push on left crank, per revolution, lighter pedaling less noticeable. It's definitely not the usual ...
visionset's user avatar
  • 121
0 votes
1 answer
67 views

Lateral play in Crankset

I'm converting a ~2006 Scott Reflex to a 1x drive train, following the instructions on this video: Convert From Square Taper to Hollowtech II Bottom Bracket/Crankset - RJ the Bike Guy However I am ...
mapface's user avatar
  • 197
1 vote
3 answers
349 views

1x9 wide range cassette

I am curious to find out if anyone has figured out a viable solution for a 1x9 wide range eg; 11 to 46 or 11 to 50 setup without using a derailleur hanger extension? I have a FS mtb and am not too ...
Raymond Dunne's user avatar
1 vote
1 answer
546 views

What chains are OK for a Brompton?

What type of chain should I buy for my Brompton bicycle? The chain on my Brompton bicycle is stretched, and I would like to buy a replacement. There is no Brompton dealer in my country, so I'd like to ...
Michael Altfield's user avatar
8 votes
2 answers
1k views

How to determine chain length on a Brompton?

How can I determine the correct chain length on a Brompton bicycle? I have a Brompton bicycle with a non-standard (aftermarket upgraded) drivetrain. My chain broke and I lost some links, so I don't ...
Michael Altfield's user avatar
3 votes
2 answers
961 views

Shimano FC-RS510 compatibility with Shimano Ultegra 6800 and Shimano R7000

I have a BMC Granfondo gf01 (Rim Brake version) that was bought second-hand and came equipped with Shimano Ultegra 6800 (11-speed). Just the Crankset is different, being a Shimano Ultegra FC-6700 (10-...
João Fidalgo's user avatar
4 votes
3 answers
1k views

What do I need to consider when updating my Cannondale Topstone 4 groupset?

Last year I purchased a Cannondale Topstone 4, it was my first dropbar bike and I saw gravel as a safe do it all option as I got into cycling. So far I love my bike but as I've become a better cyclist ...
Katie A's user avatar
  • 49
1 vote
2 answers
88 views

Difficulties assessing whether drivetrain is worn

I've been a hobby mountain biker for a couple of years now. My bike is getting older and older (10+ years, still 26 inches) and I would like to do more maintenance jobs myself since it is not worth ...
Bike-Hummel's user avatar
1 vote
1 answer
260 views

I need help with total capacity of rear derailleur

I am unsure how to calculate the total capacity for a 1x drivetrain, I have 46t up front and 11-32 10 speed cassette. How can I determine which derailleur will work with this setup? E-mtb build. I was ...
Confused's user avatar
4 votes
2 answers
126 views

Recommended torque for belt port in rear triangle?

Last week while doing a bleed and rotor replacement on my Spot Acme, my bike accidentally fell from the stand with the wheels removed, causing a little damage to the pulley: I didn't notice this ...
parisminton's user avatar
1 vote
2 answers
72 views

Tandem creaking when captain pedals hard

I'm used to single rider bikes, but new to tandems. We have a specific creak that I (as captain) can also feel through the pedals. It's on every strong stroke of the captain's pedals, left or right, ...
Chris H's user avatar
  • 58.3k
4 votes
3 answers
820 views

Inexpensive mods for decathlon 7 speed road bike

I have a Decathlon Triban RC 100 Flat bar. It is an entry level gravel/roadie that I have had for over two years now. It comes with a Shimano Tourney 1x7 set up, which is quite underwhelming. However, ...
Prash's user avatar
  • 141
3 votes
2 answers
802 views

Convert the number of teeth in a chain-based drive train to the number of teeth in a gates-based drive train

If I'd convert my drivetrain from a chain-based drivetrain into a belt-based drivetrain and I'd want to keep the exact same transmission, how do I know the required number of teeth for the front belt ...
Stücke's user avatar
  • 1,426
2 votes
1 answer
181 views

Shimano 7 speed shifter with 9 speed drivetrain

Can I use a Shimano Alivio 7 speed shifter with Shimano Deore 9 speed drivetrain? Basically the bike originally came with everything being set up for 7 speed. Somebody switched out my tire/rim and ...
Phil's user avatar
  • 21
12 votes
3 answers
3k views

Can I update a decade-old mountain bike to modern standards?

About ten years ago, I built myself a new bike, for general utility riding and some light trips through the countryside (tens of miles on towpaths etc). I was most familiar with the classic (hardtail) ...
Tom Anderson's user avatar
2 votes
3 answers
188 views

Something feels like brake rub but isn't brake rub

I brought my road bike on a flight last week and after I put it back together I immediately noticed it felt slow and muddy. It felt like I had brake rub or a mushy back tire. I'd say it feels about ...
lady gaga's user avatar
  • 121
3 votes
2 answers
180 views

Boardman Comp Hybrid 2012 - Suggestions for cheap way to get much lower gearing?

I am just about to buy a boardman comp 2012 hybrid bike which I want to use bikepacking. The gearing will be a little high as standard, it's a flat bar setup with Sram X5 9 speed shifters and rear ...
Andy Bbop's user avatar
1 vote
1 answer
635 views

What is the largest cassette I can fit on a Canyon Grizl CF SL 7 1by?

I'm considering buying a Canyon Grizl CF 7 1by, but I do a lot of bikepacking in hilly areas, so I'd like to put on a larger cassette to lower the minimum gear ratio. What is the largest cassette that ...
joshlf's user avatar
  • 251
2 votes
2 answers
2k views

Will a 11 speed Shimano Deore crankset work with a 9 speed Shimano Altus cassette? [MTB]

I have a 2020 Vitus Nucleus 27 VR with a stripped pedal thread on the left crank arm (bought it secondhand, and am guessing the previous owner crossthreaded it). The current drivetrain is a 2x9 ...
jpb647's user avatar
  • 23
0 votes
1 answer
623 views

Tiagra 4700 2x10 vs 105 R7000 2x11 for Gravel Bike

I'm putting together a gravel bike from parts. It will be for mechanical brakes -- cantilever at first and maybe mechanical disc later. I will be buying new shifters, derailleurs, cassette, and chain. ...
Old95rpm's user avatar
  • 300
5 votes
4 answers
5k views

Drivetrain 1x12 or 2x10 for my MTB use case?

I didn't ride bikes for quite some time and decided to start again this year. I'm currently looking for a MTB that will be kind of universal, I'm pretty much set on everything and picked few models, ...
Bob_the_bob's user avatar
2 votes
1 answer
505 views

Chain not meshing with new cassette

My chain is a SRAM PC-971, worn less than .75", and my derailleur is 9-speed 105. I just installed a new Shimano HG-400 cassette, and it seems like the chain isn't 'meshing' correctly, causing a ...
JoshuaF's user avatar
  • 261
3 votes
1 answer
422 views

Looking for an optical gear display solution for a Shimano Ultegra 10 speed 6700 group set [duplicate]

I upgraded my wife’s road bike for a 2011 carbon Devinci CX4 equipped with an Ultegra 6700 groupset. She’s missing the optical gear indicators she used to have on the shifters. I already looked at the ...
Philippe W's user avatar
1 vote
4 answers
278 views

Chain skipping teeth while staying on small front chainring

I recently converted my bike with 9 speed 105 from a triple to a double chainring. I installed my new 34/50 crankset and noticed that chain would slip across the teeth of the 34t chainring whenever ...
pazzmaul's user avatar
0 votes
0 answers
99 views

Is it a X sync or an X sync 2

This chainring is it an X-SYNC or X-SYNC2? https://www.bike-discount.de/en/sram-eagle-12-speed-chainring-x-sync-2-direct-mount-6mm-offset It is sold as xsync2 but on the chainring is clearly mentioned ...
davidm's user avatar
  • 145
2 votes
4 answers
1k views

9/10 speed chain with vintage 2x5 crankset

I have an old crankset from an 80s 10-speed (2x5) bicycle with downtube friction shifters. The chain currently in use is marked as "6/7/8 speed," but works fine on the 5-speed freewheel. For ...
jayded-bee's user avatar
5 votes
3 answers
669 views

Improving the Efficiency of a Derailleur: Enlarging the Cassette Sprockets to reduce Friction

For reasons that I have not yet understood, the smallest sprockets with only 11 teeth have prevailed in derailleur cassettes of road bikes, which leads to a very strong deflection of the individual ...
Dave's user avatar
  • 153

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