Questions tagged [drivetrain]

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

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4
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1answer
2k 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?
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1answer
1k 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-...
4
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5answers
2k views

Transmission (cassette/crankset) considerations for 1st road bike purchase

I currently have a touring bike, with fenders, rack, panniers, and so on. I currently run a triple crankset 28/38/48 and 9sp 11-34 cassette. I mostly commute and tour with this bike. And with a fair ...
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1answer
1k 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:
4
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3answers
3k views

How to: Sram 2x10 to 1x10

I'm thinking on converting my Sram transmission 2x10 to 1x10, this is with a single chain ring. My biggest doubt is how to prevent cross chaining, do I need to get a special chain or how do I prevent ...
8
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3answers
32k views

Can I replace chainrings without replacing the rest of the drive train?

I now ride a 60cm SurlyLHT with chain rings at 26/36/48t. Can I replace with a smaller set at 22/32/46t (or similar combination) without having to replace the entire drive train - cassette, rear ...
2
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3answers
5k 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) ...
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2answers
7k views

I need help on how to make my bike faster [closed]

Hi Just wanted to ask how to make my bike faster. Do I change the front chainring to a larger one, if so do I have to get a whole new drive train or can I just get another shimano large ring. Can I ...
5
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1answer
379 views

Claud Butler Tandem - add a front derailleur?

I'm in the process of stripping a SWB Claud Butler tandem so I can get it repainted. There are a couple of things I need help with.... a) Can you fit a front mech to the bike, and if so, are there ...
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2answers
255 views

What kind of (cheap) chainrings can be used with a Deore CS-HG51 cassette

Will the Deore 590 be ok ? Any other alternatives ?
8
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1answer
503 views

How far off a chain line can I go?

I'm struggling to find a replace crank set to replace the SR Suntour set that came on my bike. The chain rings were riveted together so on bending one I had to replace the set. There's very few 7 ...
16
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4answers
2k views

Minimal effort chain cleaning

One of the main reasons I eventually give up my bicycle commute in winter is that keeping my bike -mainly the drivetrain- clean despite all the rain/dirt/salt/hail/snow becomes too much of a time suck....
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2answers
1k 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 ...
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5answers
3k 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 ...
4
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3answers
2k views

Front derailleur sticking, not shifting. Will soaking in solvent damage parts?

I've got an older deore lx front derailleur for a mountain triple crankset. It wasn't shifting properly, and it seems that it's sticking and not returning back to a neutral position when I shift it. ...
8
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6answers
14k views

Why are there almost no bikes with a single chainring?

Bikes with two or three chainrings are the norm, and then there are singlespeeds, but except for kids' bikes, you see almost no stock bikes with a single chainring in front but a cassette and ...
3
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1answer
1k 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
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2answers
2k 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 ...
2
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7answers
5k 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?
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2answers
3k 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
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1answer
1k 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 ...
32
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11answers
21k views

Is there such thing as an automatic transmission for bikes?

Has anyone ever designed or manufactured an automatic transmission (or automatic shifter?) for cycling? I imagine such a device would automatically change the gearing to allow the rider to maintain ...
0
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4answers
3k views

"Clacking" noise coming from drivetrain

I have a 2005 Specialized S-Works Tarmac with Dura-Ace components and Mavic Ksyrium SL wheelset. I get a "clacking" noise coming from the drivetrain area only when pedaling forward. I say "...
8
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4answers
36k views

Can I fit a cassette with a larger range with my Shimano Tiagra 10-speed ( GS-4600) derailleur?

I'm currently running a 2x10 shimano tiagra 10-speed drivetrain with a 50/34 compact crankset, a 12-30 rear cassette, and a Shimano Tiagra GS-4600 derailleur (that's medium cage aka road long cage) on ...
4
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1answer
516 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 ...
6
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3answers
2k views

Is it possible to use road-style brifters with an internal gear hub?

I have a touring bike with road-style Shimano brifters, which I love. I'm also very intrigued by internal-gear hubs, but these hubs seem to focus on rotary or push-button shifters. Is it possible to ...
21
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2answers
6k views

How bad is cross chaining?

Accepted wisdom is that cross chaining is bad and that we should never do it. However, most of us set up our bikes so that we can run any gear combination. Invariably, I'll occasionally look down and ...
5
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4answers
4k views

Why is my chain riding up and skipping teeth on the freewheel?

Due to a number of reasons, I would like to keep my freewheel at all costs (It's a Sachs freewheel, the bike has all sorts of more 'vintage' components, and they're hard to come by). From reading all ...
2
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2answers
227 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
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3answers
11k 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... ...
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3answers
2k views

Thread locking fluid on fixed cog

I just recently got a single speed with a flipflop hub and got the bike shop to switch it to the fixed cog. While riding around, the gear came loose on the back hub and almost flung me off so I had ...
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2answers
6k 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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3answers
8k views

What's the point of removing the excess oil after lubing the chain?

There is a very strong point in bike-mechanics culture, which I've seen in very competent answers here, too, to apply one drop of lube in every single roller of a clean chain, and then (!very ...
3
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5answers
9k 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 ...
2
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3answers
28k 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 ...
0
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1answer
678 views

Is SRAM Apex crankset compatible with 6 speed chain and rear cassette

My bike's parts are in need of change and I wanted to do this in stages. Currently it has shimano parts based on a triple mountian bike front crank and derailleur and six speed rear cassette and ...
13
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12answers
97k views

While pedaling standing up, bike crank gives in as if shifting, what is causing this?

While standing up and pedaling, the cranks give in as if shifting. It seams like I am shifting down, but my hands are off the shifter, almost like the chain is skipping a link. I took it to a bike ...
3
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2answers
2k 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 ...
48
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4answers
26k views

Why do bikes have their drivetrains on the right?

Every bicycle I have seen in my life has its gears and chain on the right side? Why is this? The only thing I could find regarding this question is this forum topic, which speculates about things such ...
14
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6answers
32k views

Mysterious case: chain falling off large chainring, how to fix?

On my commuter bike I decided to rid myself of the small inner chain ring (which is almost never used) and front dérailleur (now redundant). However, I have come across an unusual problem. Whilst ...
32
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2answers
16k views

Why does pedalling backwards not move my bike backwards?

On the Mountain bike I have, pedalling backwards moves the chain but doesn't drive the wheels of the bike backwards like you would expect it to. Why is this?
12
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7answers
10k views

Does gear ratio affect Power?

Let me preface by saying that this may not be the right SE. I considered asking on the Physics SE, but I thought I might try here first. If it is wrong, I am not against it being migrated. From basic ...
15
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6answers
68k views

Bike is shifting on its own

Ever since I got my bike (Surly Long Haul Trucker), it has been prone to shifting on its own. This is almost guaranteed to happen when I stand up on the pedals, and happens regularly when sitting as ...
60
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6answers
109k views

What are the pros and cons of internal gears?

I've had my hybrid 24-speed for a bit over 3 years now, and just last weekend, when looking for a bike for my wife, discovered internal gears. Suffice to say it blew my mind when I saw 7-speed ...
12
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3answers
4k views

How to avoid wearing out gears?

I have a Specialized Tricross which I bought new last year. In that time (approximately 1K miles), I wore out my chain and gears. At least two of my gears are still slipping, even with a new chain. ...
20
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2answers
4k views

Is there a practical gain from elliptical/oval chainrings?

I have seen competitive (amateur) cyclists with oval chainrings (front). What is the deal? Are they just for showing off, or is there a practical gain from it (different force transfer).
0
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0answers
136 views

How do I clean my drive train? [duplicate]

Possible Duplicate: What to use to clean your chain (and cogs)? My mountain bike drive train has accumulated a dirt /oil layer from oiling the chain and then ridding in dirt and muck. How do I ...
10
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2answers
6k views

Is there a downside to spoke protectors?

A few weeks ago, the derailer on my touring bike caught on the chain and ripped itself off the frame. (See the link below for more info on the incident.) The spoke protector was cracked in half by ...
8
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4answers
21k views

How much distance can I put on drivetrain components?

I figure the jockey wheels on my derailer will last nearly forever, but what about the rest: cassette, chainrings, and chain? How many miles, kilometers, or furlongs do they normally last? I know ...
17
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2answers
39k views

I'm changing from 8-speed to 10-speed will I need to replace my rear Hub?

I've dug an old road bike out of the garage for the winter and need to upgrade the drive-train, I'm happy about most of what I need but but I'm not sure about the rear hub (an old Shimano Ultegra).. ....

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