Questions tagged [drivetrain]

Questions about a bicycle's drivetrain system, including the chain, gears, chainring, derailers, etcetera.

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1answer
39 views

Can I switch to a new type of bottom bracket?

The bottom bracket on my MTB (Cube Analog '17) needs to be replaced, my local bike shop said he didn't have the required piece: a square bottom bracket 115 x 73mm. Since I can't find this type of ...
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72 views

Clunking noise only when pedaling at higher RPM not low RPM. Video of Issue linked

Bicycle Type: Gary Fisher Marlin Mountain Bike with 3x9 drive train. Issue Description: When pedaling, there's a clunking noise emanating from what sounds like the cassette & hub interface but ...
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1answer
29 views

Older Shimano Ultegra Shifter compatibility

I have an older Shimano Ultegra Shifter that broke, and I am wondering how I can know what shifters are compatible with the gear set as a replacement? My broken shifter is on the right side and is a ...
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1answer
43 views

Which chain should I buy to replace the one on my Specialized Rockhopper 2016?

I own a Specialized 2016 Rockhopper Expert and the chain is slightly twisted and needs to be replaced. This bike has 10 rear gears and 2 front gears. The specifications indicate the chain is a "KMC ...
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3answers
191 views

Friction shifting 9 speeds using an 11 speed rear derailleur

I am interested in running a 1 x 9 drivetrain using an 11-speed Shimano 105 R7000 rear derailleur. If I'm friction shifting 9 speeds, will using an 11-speed derailleur cause issues? Or is it as simple ...
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0answers
40 views

Possible drivetrain problem?

I recently bought a bike and upon riding it and coasting for a relatively short time I heard a noise that sounded like the chain sort of clicking louder than the freewheel, then eventually the chain ...
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1answer
87 views

Trek Mamba 2013. 1x11 upgrade

I would like to know if it is worth and possible to upgrade a 2013. Trek Mamba from a 3x9 to a 1x11. Rear hub: Formula DC22
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1answer
60 views

Do I need a medium or large cage rear derailleur?

My SRAM x5 rear derailleur got caught on something and broke. I went to order a new one and learned there are different cage sizes. I don't know which size cage I currently have. While trying to ...
5
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1answer
81 views

Wear marks on chains

I am generally using SRAM chains with a powerlink. For a new chain there is no indication of a preferred pulling direction or inside/outside. If we demount a used chain that has never been taken off ...
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2answers
61 views

Shimano Nexus with shift levers

Shimano Nexus usually comes with a twist shifts. Is it possible to also use shift levers with Nexus? Which ones? More concretely, Shimano Nexus C6000 Revoshift (8s) (hub) and Shimano Alfine 7000 (8s) ...
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2answers
264 views

Do I need a new chainring?

Here's my setup: It runs great. But the chain is a little rusty. I measure the chain wear and it looks like about 1/32 of an inch over 12 inches. So not much, right? But chains are cheap so I try a ...
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1answer
53 views

Cheapest and safest way to clean MTB drivetrain?

I've got a CUBE Attention MTB which has been serving me well, but out of a lack of knowledge I never bothered to degrease the chain before relubing it, so over time there has been a build up of gunk ...
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4answers
294 views

Options for adding lower gearing for bike with Shimano 105 drivetrain

I have a 2015 Salsa Vaya 2 with a Shimano 105 drivetrain. It has a Shimano 105 Triple front derailleur with a 30/42/52t crankset. In the back it has an 11-30T 10-speed cassette (installed for me by ...
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2answers
99 views

Going from 2x8-speed to 1x11-speed

I bought a beginner bike with a 2x 8-speed Shimano setup a year ago. I am looking to upgrade, now that I am getting more in to cycling then expected. Since I live in a really flat area (when I go on 3-...
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2answers
45 views

Crankset identification

Does anyone know, which exact crankset is pictured below? It came shipped with a Bike Friday NWT (New World Tourist)
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3answers
62 views

9 to 11 speed partial groupset upgrade? Is it possible?

I have a Shimano Sora 3500 full groupset (FD 50-34, Crankset 170mm length with BB RS500 (BC1.37 x 24), Sprocket 12-28) on my road bike. I want to make a partial upgrade to 105 set due to my budget ...
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2answers
88 views

Single speed chain alignment

I have a seasoned 26" Dirt Jump bike where the time has come to replace the bottom bracket. The bike currently has Profile BMX cranks, with a single speed rear wheel (not an MTB freehub). Current BB ...
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1answer
143 views

How do I move my chainring without moving my crank arm?

I recently did a 1x10 conversion on my mountain bike. I replaced almost everything on my drive train except for my crankset. The single chainring (104 BCD, 34T) fits onto my drive-side crank arm in ...
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1answer
79 views

Chain crunching after degrease and lubrication

I did the usual degrease and lubrication on my mountain bike today but when I tried to ride the bike later on I heard pretty bad crunching sounds. The sound is definitely coming from somewhere around ...
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0answers
110 views

Chain slipping off from singlespeed rear cog

After I have worn out the cogs and chain to the point where my chain tensioner couldn't keep up anymore, I have replaced my drive train pieces, the axle and spacer are still the same. So I went from: ...
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1answer
62 views

Are all chainring compatible with all chain?

I want to change my drivetrain on my bike and i found everything except the chainring. So I was wondering if I could choose any chainring. Thank for yours response.
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2answers
616 views

Switching a 11 speed cassette+wheel with a 8 speed freewheel+wheel. Any compatibility issues?

I'm trying to get a pair of training wheels to swap out for my race wheels. I dug up a pair of freewheel compatible wheels and I'm trying to buy freewheels now to fit the bike. The bike's drivetrain ...
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3answers
2k views

10 speed chain on 11 speed cassette

Recently I installed an 11 speed cassette and shift levers on my road bike (105 R7000), but I kept the 10 speed chain that I have. It sort of works fine but on the third cog on the back the chain ...
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1answer
554 views

Bike trainer 11 speed cassette compatibility with Ultegra 6500 9 speed groupset

Disclaimer. I don’t know much about bike mechanics. I had to do a lot of reading just to be able to name things right and to be able to write this post :) I bought Elite Suito bike trainer a few days ...
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2answers
422 views

Upgrade 1x8 drivetrain

I have an Orange 2017 Diamondback Hook that came with an SRAM 1x8 drive-train. I'd like to upgrade it to increase the range. What are my best options? Thanks!
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2answers
82 views

Deore FC-M615 single 64 BCD chainring

I want to build a 1x9 drivetrain MTB so I'm wondering if I can set this FC-M615 crankset to a single 64 BCD 28T chainring, from what I can see the XT M8000 is compatible and allows 11-speed cassette ...
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2answers
165 views

Chainring just don't know when to let go

My chain needed to be replaced for half a year ago and I've finally replaced it. But after replacing it, I've notice a lot of clicking noise from the chainring area. and when I go check it, I saw the ...
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4answers
6k views

Why do people use bigger cassettes for lower gearing when they could instead use smaller chainrings?

I want lower (sub 1:1) gearing on my next drivetrain but also a decent range, reasonable spacing between gears and still be reasonably light. While looking at different combinations of components, I ...
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2answers
177 views

Crankset and derailleur

Iam checking out my mtb for it's parts. How do I be sure, for the cage length is the right one, if the differnce between the large and the small at the rear is from 42 to 11, and from 36 to 26 at the ...
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3answers
182 views

Cage Length (Rear Derallieur) and Total Capacity

My drivetrain required total capacity is 14. (folding bicycle Dahon Eco C6, 14-28 rear, 1x front) The rear derailleur (Shimano TZ50, which I purchased), has total capacity = 34 and a long cage. Are ...
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1answer
97 views

What parts of 12-speed drivetrains are compatible between brands?

Now that Shimano has released their own 12-speed MTB drivetrains (SLX and XT), I have the following question: What parts of these drivetrains are compatible between Shimano and SRAM? I would guess ...
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4answers
420 views

How important is it to clean your drivetrain?

For the first time in my life I took the time to properly clean the drivetrain of a bike. How proper it was might be debatable, but for the first time I saw that the gears are not actually black. I'...
3
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1answer
243 views

9 speed chain doesn't fit 9 speed cassette

In all my years of working on bikes, this is a first. Bought a new 9 speed KMC chain and 9 speed cassette to replace a worn 9 speed drivetrain recently (single chain ring). Went to put everything on ...
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2answers
125 views

Creaking sound when pedaling [audio clip included]

Something is creaking on my Cannondale while pedaling with force. It is easier to hear in low gears, when climbing. An audio clip tells it better than any literal description, so here is a recording ...
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1answer
51 views

Drivetrain replacement or upgrade - 2009 Cannondale Six 6

A couple different shops have suggested that it’s time to replace my drivetrain. Chain has stretched and gears are losing shape. The rear cassette is an SRAM PG-950 12-26 9 speed. Crank is Tiagra 30/...
2
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1answer
137 views

Problems indexing gears

I have a Boardman CX Team 2014 with some indexing issues. It's running a Shimano Sora ST-3500 9 speed shifter with a Shimano Sora rear mech. The gears had not been running all that smoothly and, as I ...
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2answers
57 views

Upgrading 9spd Allez to 105

I've got a ~2007 Specialized Allez double with a Sora/Tiagra drivetrain that's gotten pretty worn from years of use. I'm thinking of upgrading it to the the latest 105 R7000. Would be my first time ...
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2answers
1k views

Convert to belt drive

Is it generally possible to convert a drivetrain on a bike from a chain to belt drive? What exactly is involved with this task?
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3answers
151 views

Got rust on chain and cassette

I have a pretty new bike (5 years) and just recently got all the transmission very rusty (https://imgur.com/a/AlCts9b). Several things happened: · Degreased it thoroughly (probably too much) · ...
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2answers
68 views

Drivetrain, components of different brand

Do all parts of the drive train have to be of the same brand? Can the chain be a different brand from the rest of the drive train? Cassette, crank, derailleurs?
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2answers
87 views

Changing cassette road bike

I have an 11-25T cassette with a Sora derailleur on my road bike. There are a ton of hills around me that I am struggling on when I'm on my road bike but not my mountain. I can easily remove the ...
2
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3answers
2k views

3x9 speed to a 1x9 speed conversion

I want to convert my 27 speed 3x9 to a 1x9. What do you recommend for chainring and cassette combinations? What are the cautions?
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2answers
2k views

How to choose between 10 speed vs 12 speed drivetrain on mountain bike. Pros and Cons

I'm buying a mountain bike from a company that lets you choose the drivetrain. I am having trouble deciding whether to go for a 1 x 10 speed Deore option (11-42) or a 1 x 12 speed SLX (recently ...
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5answers
290 views

Chain Cleaning Frequency vs Cost

I got myself a new 2019 Giant Trance 2. I am loving it and am doing lots of off road trails here in Texas. A typical ride for me is about 4-6 hours and maybe 10-20 miles depending on the inclines. I'...
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1answer
199 views

Cassette, chainring, chain compatibility

I've taken on trying to nurse my husband's bike back to life. It is a 2012 Specialize Venge with Dura-Ace Di2 (very old version); Specialized pro FACT carbon chain rings, Ultegra 10-speed cassette. ...
1
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1answer
262 views

Lateral movement on rear cassette

My cassette (SRAM XG-1175) moves axially about 5 to 8mm (in line with the axle, not up and down) on my hub (whatever is standard on a 2016 Enduro Elite) But the part of the hub the cassette mounts to ...
5
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1answer
439 views

Shimano Front Chainwheel FC-MC19 Replacement?

I have Shimano FC-MC19 22/32/42 175mm crankset on my MTB for 17 years and it's time to replace it but I find it difficult to figure out what new crankset will fit my bicycle. Two years ago I replaced ...
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2answers
381 views

Will microSHIFT ADVENT 9 speed handle 46t, 50t large sprockets?

Title says it all. As we have 11-50t 9 speed cassetes available now, I was curious if anyone tried to use them with microSHIFT advent? or I have to be the first one to try it out? That would be ...
3
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2answers
2k views

Is it cost-effective to upgrade an old-ish Giant Escape R3 commuter bike with entry-level branded parts (wheels, drivetrain)?

I'm currently using a 5 year-old Giant Escape R3 (2015)(https://www.giant.co.jp/giant15/bike_datail.php?p_id=00000060) hybrid bike that I bought used (down to $400 from $500 retail price) from a bike ...
3
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1answer
97 views

Okay to use new KMC master link on old KMC 11spd chain?

I took my 11spd KMC bike chain off a few days ago to give it a good cleaning and re-mounted it to the drivetrain using a master link and park tool master link pliers. I must have not set it correctly ...

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