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

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3
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1answer
896 views

Should I remove the chain before installing new rear derailleur?

I want to put a new Sram X7 instead of killed one, should I open the chain (if I have no chain lock) or it's better to open the derailleur?
3
votes
2answers
855 views

Is there a Campagnolo / Shimano compatibility issue for friction shift systems?

I know that for indexed systems, mixing campy and shimano parts is a no-no. Does the same hold for friction drive trains? The reason I ask is that I've never worked on campy parts before and I'm ...
3
votes
1answer
81 views

Converting a 7/8spd cassette to 4/5spd

Lets get some things ticked off: Friction shifting, check Narrow stance cranks, check 2 or 3 spacers on the right hand side, check Single chainring, check (That's the context.) Are there ...
3
votes
1answer
62 views

Custom Shimano 3x11 drivetrain

I have a Trek 720 disc which came with a 2x11 Shimano 105 drive train setup. When it's fully loaded for touring going up steep hills is just too hard - I'm barely heavy enough to push the pedal down. ...
3
votes
2answers
449 views

Can you use a wide range 11-42 cassette with a double crankset

Can you use a 10 or 11 speed wide range (11-42, 10-42, or 11-40) cassette with a double crankset? I know these wide range cassettes are typically built for a 1x setup on a mountain bike, but is ...
3
votes
1answer
615 views

When Installing chainrings which are pinned, how should I orient the chain drop prevention pin?

I'm setting up a double crankset with a new front chainring which is ramped and pinned. How should I orient the outer front chainring with respect to the chain drop prevention pin? Should this line ...
3
votes
1answer
332 views

Should I have a spare cassette or a spare wheel?

I have a road bike that I use for triathlons as well as club rides in the evenings and on weekends. I don't have the bike in front of me, but the range of the cassette is on the low side. I'm more ...
3
votes
2answers
1k views

campagnolo wheel on shimano or sram drivetrain?

I have a road wheel that has Campagnolo splined hub and 10 speed cassette. I'd like to know if anyone has any experience running a Campy wheel on Shimano/Sram drive train? I know the measurements of ...
3
votes
1answer
187 views

Fettling issues - slow shifting rear gears while riding

I've recently had an issue with my gearing, struggling to shift down onto the last few cogs on the cassette. I've got a Shimano Ultegra 6800 groupset, but when I shift whilst riding, I get a "tick-...
3
votes
3answers
749 views

Chain falling off inner chain ring no matter how L screw is set

Bike is a relatively new Cannondale Carbon Synapse with the Ultegra 6800 groupset (although front chainrings are FSA). Has about 1000KMs on it. Bike has been great, but I went out on a ride today ...
3
votes
1answer
936 views

Can a 10-speed chain be used with a 9-speed cassette?

I have an extra 10-speed chain I would like to use with a 9-speed cassette on my mountain bike. Will this combination work ok?
3
votes
1answer
137 views

Indexed rear derailer shifts two cogs for each step

I'm trying to troubleshoot poor shifting issues on a mountain bike that appears to have been built out of the spare parts box… The current problem is "instability" on the rear derailer – the chain ...
3
votes
1answer
4k views

Can I run 2x10 XT Shifters on a flatbar road bike with 105 10 speed STI components?

I want to run 2x10 XT shifters on a flatbar but still want use the 10 speed 105 components of the road bike would there be any problems?
3
votes
0answers
84 views

new 9-speed chain fails after 4 weeks and ~240 miles

About 4 weeks ago I installed a new SRAM PC-971 chain on my Surly LHT. This morning I've noticed that one of the outer chain link plates started to pull away (to spread in a way that the pin is not ...
2
votes
5answers
2k views

Six speed chain on an eight speed bike

So in the shop they asked me "what chain do you need" and I said 7. They said "you could try this 6-speed, it is half the price of a 7, and we put it on 7-speeds all the time". I said "ok", only to ...
2
votes
6answers
3k views

How does a two wheel drive bike work?

A two wheel drive bike is a bike without a motor that can still turn. The front and back wheel both get power. How does a bike with this type of drivetrain work?
2
votes
1answer
341 views

Can you use an Alfine 8-speed “disc” hub with a non-disc wheel?

I have a city bike with a Nexus 8-speed and I'd like to rebuild the rear wheel with an Alfine 8-speed. The only hubs I can find all seem to be disc mount hubs. My city bike has v-brakes. Is it ok to ...
2
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3answers
6k views

Can you use a SRAM 10-speed Powerlock with a Shimano chain/drivetrain?

I just bought a pair of SRAM Powerlocks for 10-speed chains. The packaging says that they can only be used with SRAM chains. Will anything nasty happen if I use it with a Shimano chain and cassette?
2
votes
2answers
925 views

Mountain vs. Road 10 Speed Drivetrain Compatibility

I'm modifying my CX bike to double as a lightweight tourer. I'm currently running a 1x10 SRAM Force/Rival drivetrain. I'd like to replace my single front chainring with a "mountain double" to ...
2
votes
3answers
1k views

How to thread gear cables through outers and end caps?

I'm currently putting a bike together with recycled parts and want to get away with not having to purchase a new gear wire. On my first attempt to thread the RD wire I ended up fraying it, cutting off ...
2
votes
2answers
154 views

Is there any reason to keep original drive-train components together until they can all be replaced?

I broke the master link in my chain a while ago and my LSB told me it was because I wasn't cleaning/lubricating my chain often enough. The chain had experienced more wear than it should have as a ...
2
votes
3answers
5k views

Huffy Cranbrook 26“ Ladies' Cruiser crank / pedal / chain ”pop" sound…?

Before you say it's a cheap bike, what more do you want... I get that! :D But it's brand new, and as you pedal it... no matter the speed, you get a pop sound at a specific point on each rotation... ...
2
votes
3answers
18k views

Will it cause problems if I use components from different series?

If I set up a bike with: 10-speed tiagra shifters 10-speed dura ace read derailleur 9-speed 105 front derailleur Will it cause problems if I use components from different series? (All of these are ...
2
votes
2answers
367 views

How much does number of gears matter for a front derailleur?

I need a low clamp 2x10 front derailleur. As it turns out to be a challenge to find locally, I begin to wonder How important is the rear gear specification? What is I get 2x9? How important is ...
2
votes
4answers
1k views

Replacing 42/52 crankset to 39/52 - will it make a difference?

I have several questions that arise from the fact that the current drivetrain on my old Peugeot road bike is pretty tough to ride when climbing up some steep hills: so I've got a 42/52 up front and 6 ...
2
votes
1answer
122 views

Noisy drivetrain on road bike

I have a noisy drive train on my Trek road bike with Shimano 105. It's very noticeable on the big cog, and is not as bad on the small cog, but still irritating. It's just a constant whiring noise. I ...
2
votes
2answers
2k views

Can I use a derailleur hanger in my old frame?

I'm trying to adapt an old '83 Fuji Del Rey frame with the parts of my broken '86 Fuji Espree and I'm having problems adapting the Derailleur. The Del Rey frame doesn't come with the little hook ...
2
votes
1answer
74 views

9-speed Sora w/discs to 11-speed 105 - What Sora bits can I keep?

I'm planning to upgrade from 9 to 11 speed, Sora 3500 to 105 5800. I'd like to keep my existing mechanical disc brakes, which I believe I can, but please correct me if wrong. Also, if I bought the ...
2
votes
1answer
50 views

Can I use the drive train of another bike?

I was gifted an old bike that I've decided I want to fix up and use. I believe it's a hybrid, not quite road and not quite mountain bike. It's 21 speed and it's an Apollo quick cross (I can't find ...
2
votes
1answer
542 views

9sp/10sp compatibility in Shimano SLX drivetrains

This is related to my previous question about SLX chainrings. I'm half way through upgrading my drivetrain from 2x9 to 2x10. I currently have: Shifters: SL-M670-I (10sp), Chainset: FC-M665 (9sp ...
2
votes
3answers
1k views

Can I use a SRAM PC850 chain on a 6-speed bike?

I want to buy a chain for a 6-speed bike. I know SRAM chains have the special link, meaning that no tools are needed. I've seen a very good deal on the SRAM PC850 chain, but their website lists this ...
2
votes
1answer
825 views

Are these chainrings the reason my chain skips/hops?

When I ride my bike normally, then chain skips like crazy. I know it skips in the front because I stuck some paper in the chain to see if it moved and it didn't. Chainrings:
1
vote
3answers
1k views

Theoretical question about double drivetrain (both-sides drive)

If one were to take a single-speed flip-flop hub, and fit two identical freewheels, and couple them to two identical chainrings (i.e. two drive-side cranks, one on each side of the bike), you would ...
1
vote
5answers
4k views

Can a worn drive-train be upgraded incrementally or should it be all at once?

It seems like I have a worn drive-train (sad trombone previous question) and should think about improving it. I'm a little leery about throwing good money after bad into a used bike. Must I buy a new ...
1
vote
3answers
6k views

Difference between road & mountain drivetrain

Basically MTB and road bikes have different brand parts (like deore / XT; Sora / Utegra etc). What are the main differences between the 2 types, that will make it incompatible? Are there things ...
1
vote
2answers
748 views

How do I take apart the axle and freehub on this bike

I have a long wheelbase recumbent built by Sun Bicycles. There are some complications with finding out what kinds of components went into the interior of the bike. Brakes and shifters have their ...
1
vote
1answer
794 views

What components are recommended for entry level mountain bike?

I am looking for an entry level mountain bike. I plan on using it on real mountain bike trails, not just unpaved trails and greenways. Specifically, here's what I'd like: good shifters/derailleurs ...
1
vote
4answers
9k views

9-speed system to 11-speed drivetrain upgrade?

I am currently upgrading my bike from a 9 speed to an 11 speed system. I am currently using shimano 105 components and will continue to use them within the new system. Current bike has a shimano 105 ...
1
vote
3answers
3k views

Chainline Alignment Front and Rear

Although I have read Sheldon Brown's All About Bicycle Chainline article I'm still struggling to understand a key point. If you are running a different chainline to the manufacturers (new crankset) ...
1
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3answers
190 views

SRAM compatible 11 speed 12-25 cassette?

I'm looking for an 11 speed 12-25 cassette compatible with a SRAM drivetrain, however I don't think SRAM makes one. They list specs for their 11 speed cassettes as follows: 11-25: 11,12,13,14,15,16,...
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3answers
377 views

Campagnolo Crank Compatibility 11 speed crank to 9 speed chain/deraillieur/shifters

I need to replace my 9 Speed Campagnolo Racing T Crank with a new one which uses the power torque system. Is a 11 Speed Athena (or 10 speed Centaur) crank compatible with the racing t front ...
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vote
3answers
341 views

Is the plastic piece between the seven gear sprocket and the spokes hard to replace, and how?

I was given a 21 gear mountain bike as payment for some work I did for a neighbor which had been in his backyard for about a year. Though it cleaned up very well there is one part I would love to ...
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vote
2answers
4k views

SRAM xx1 1 x 11 drive train very noisey

I have a 1 x 11 setup on my mtn bike. This is stock from the factory, it wasn't a conversion. When Im in the granny gear climbing, there is a lot of chain/derailer noise. It gets more noticeable ...
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1answer
567 views

SLX chainring compatibility

I'm considering swapping the inner ring on my SLX double chainset (M665) from 22T to 28T. I noticed that the newer M675 has a 40/28 option, so I figured that the 28T chainring from this set-up would ...
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vote
1answer
435 views

Going from a 1x8 to 2x10 setup

After using my bike for a year I feel that although I enjoy the simplicity of a single chainring setup, I would prefer a more versatile 2x10 setup and would like to move to it. Currently the two ...
1
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1answer
160 views

No more chainguide from Sram?

I remember I saw somewhere new Sram system that does not require chainguide. Don't remember the model, but could you please tell me more about it? How does it work?
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2answers
4k views

Will 10 speed cranks work with an 8 speed freewheel?

I'm looking at building a road-bike, and I've just purchased some wheels with campagnolo hubs, with an 8 speed freewheel on the back. Can I use Campagnolo Daytona / Veloce cranks on the front? I ...
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vote
2answers
232 views

What will I need to consider when modernizing a pre-1990s steel frame? [closed]

I'm in the process of upgrading a well loved 1970s steel frame from a downtube shifter system to a modern 'brifter' system. Through this process I've had to look at many disparate sources to get ...
1
vote
1answer
531 views

FC-M330 replacement

I have a Trek 4500 with a Shimano FC-M330 crankset. I need to replace the crankset and was hoping that someone could tell me the current replacement. I believe that I have narrowed it down to the FC-...
1
vote
1answer
787 views

Need help choosing compatible rear derailleur, cassette & chain

I just "inherited" a bike that has no rear derailleur or chain. It also looks like the cassette is pretty worn, so I'm thinking about replacing that too. I've looked around on the forum and I think ...