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Questions tagged [chainring]

The cogs (gears) at the front of your drive chain, connected to the cranks.

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6
votes
1answer
181 views

Modify a front derailleur cage to allow for non-round chainrings like Biopace or Rotor?

I am repairing my road bike after a mishap where it swallowed the rear derailleur around the cassette and into the front derailleur. As part of the rebuild, I'm swapping out the badly worn old ...
1
vote
1answer
82 views

Chain length adjustment

If I change my 1x chainring from a 44 to a 42, do I need to shorten the chain? If so by how many links? I am running a 44 with an 11-42 cassette (SRAM Apex1).
3
votes
2answers
767 views

Need easier gearing. What would the effect of changing the chainring or cassette be?

My mountain bike is too difficult to pedal when the going gets steep. I need an easier gear ratio. Am I better off switching the chainring or the cassette? I currently have: A 30 tooth FSA ...
1
vote
2answers
120 views

Misc bottom backet and crankset questions [closed]

I am planning to upgrade a few of my bikes .. some due to faulty BBs and some just to upgrade the crankset. Here are the questions I have: 1) Road vs MTB I read from the another post about Road vs ...
0
votes
0answers
65 views

Bicycle pedaling resistance on single speed e-bike

Recently, I've bought an ebike that is about 2 months old now, I've maybe gotten 100-150 miles off of it as a daily commuter. When I pedal, it would have a lot of opposing force or friction, and ...
2
votes
1answer
47 views

Dura Ace 9100 chainring on Ultegra 8000 crank?

I mounted a Dura Ace 55T 9100 on a Ultegra 8000 crank. It fit fine but on two sides on the ”outside” the crank and the chain ring is slightly misaligned. The shapes do not fully match. I just wanted ...
4
votes
1answer
798 views

R9100 chainring and R8000 crankset

Is there compatibility between R8000 crankset and R9100 chainring? I would like to mount a 54 ring on an R8000 DI2 crankset.
2
votes
1answer
88 views

Sub-compact chainring sizes?

I am looking for replacement chainrings for a mechanical, 2x Sram 11 speed drivetrain and was wondering if I can find chainrings anywhere that will fit the road bolt pattern of a standard crank but ...
3
votes
2answers
730 views

Biopace chain rings and front deraileur rub

Turns out my front chain rings are biopace, after I thought they had disappeared! I've got a problem with the chain rubbing the front deraileur at a certain point every rotation. I only get this in ...
6
votes
4answers
2k views

What should I upgrade first?

I just got a new basic hardtail bike. I want to get better, and it’s not the best bike, so I want to upgrade it. I was thinking about changing the gear set up to 1 and 11 speed rather than 3 and 8 ...
10
votes
3answers
9k views

What is the impact of changing to a smaller chainring?

My road bike has a Campagnolo Veloce gearset. It's running 53 and 39 tooth chainrings. I have a 13-25 10sp cassette. I find that a lot of the time when I'm cruising, I'm on the big chainring and in ...
0
votes
1answer
43 views

Shimano FC-5700 chainring with FD-5600 derailleur?

Currently my front chainrings are Shimano FC-5600 48/40 with FD-5600 derailleur. As I can not get new chainrings in FC-5600 I was asking myself if my FD-5600 supports FC-5700 53/39 chainrings?
4
votes
4answers
807 views

Inner chainring bent on 6 week old MTB

I bought a new Voodoo Bizango 2015 6 weeks ago. When I was out earlier I changed down and the chain somehow got wedged between the 2 front chainrings (It's 2x10) and bent the inner ring. I've read on ...
8
votes
6answers
13k 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 ...
2
votes
2answers
550 views

Can I swap from 46/36 chainrings to 36/28?

I ride a 2015 Cannondale CAADX (Sram Rival) which has an FSA Gossamer crankset fitted with 46/36 chainrings. It has 5 bolts and a 110mm BCD. I'm an old man with bad knees. I never ride on the 46 ...
3
votes
2answers
2k views

Chain coming off with internal hub gear bike - why?

I have a Raleigh Caprice bike, about 7 years old, with sturmey archer 3 speed hub gears. There have been some problems with the hub gears in the past 9 months, which have been fixed by a mechanic. ...
1
vote
1answer
146 views

SRAM AXS double to single

I'm looking at a road bike with SRAM Force AXS 2x crank but would like it as 1x. I see from photos that the spider is separate from the right crank. Are the 1x vs 2x arms and/or spiders different? ...
2
votes
1answer
1k views

What is required for a proper boost chainline on a 1x drivetrain - only a boost chainring or an entire crankset?

To obtain a proper chainline for a boost rear hub (~52 mm), is it enough to fit a boost (3 mm offset) chainring to a 1x crankset which is originally non-boost, or is an entire boost crankset required (...
0
votes
1answer
76 views

Is there a special 3/32" chain ring for single speed/fixed gear bikes?

Am I able to use what's called an "Outer" chain ring in a single speed application? Something like this https://www.modernbike.com/sugino-48t-110mm-standard-chainring Thank you.
1
vote
1answer
224 views

Shimano Tiagra - Install smaller front chainring

I recently bought a used Trek Checkpoint ALR4, with which I'm very satisfied. The gearing is ok so far for going on plane ground an light uphills, but when going on long and steeper hills it gets ...
0
votes
0answers
26 views

Qring with Etap shifting problem

I switch to Qring with my Etap Quarq crank. I cut it big qring for fit (Quarq was on the way) and switch to a new chainring bolt for hidden bolt. the problem I have now is when I’m shifting from the ...
13
votes
6answers
4k views

What explains 9 speed cassettes price differences?

I have a pretty heavy bike I use to travel long distances with a lot of luggage. It has a mix of XT, deore and other Shimano equipment. I bought it second hand so I don't really know the details. I ...
1
vote
1answer
162 views

How many teeth should be on my chainring?

I have a seven speed cassette and 3 speed chainring how many teeth should there be on the largest chainring. I am asking because I think I need to get a new chainring.
0
votes
0answers
163 views

Ultegra FC-R8000 Chainring Bolt Fatigue

As per my troubleshooting to find a bike creak (Ultegra FC-R8000 Right Crank Arm Creak) - I have installed and removed the same chainring bolts ~8 times. In the process I snapped one of them. Each of ...
6
votes
5answers
2k views

Converting 3x7 to a 1x7. Is it possible with only existing parts?

I own a 2000 model Specialized Ground Control full suspension. The front derailleur is rusty and temperamental so my solution is to remove it as well as 2 chain rings (they are removable on mine) and ...
0
votes
0answers
41 views

Does anyone here have measurements of SRAM's direct-mount spline interface?

The makerspace I work in purchased a new metal milling unit and I want to test its software's tolerances and mill a narrow-wide chainring. I'm guessing it just consists of a circle with square ...
2
votes
2answers
181 views

Chain not fitting on big chainring

I have a problem where my chain is not engaging on the big chainring. The chain is not touching the FD so, that is ruled out. Is it possible that my chain is not compatible with my crank? My chain ...
1
vote
1answer
71 views

What is the actual diameter of our current bicycle chain's rollers?

Wikipedia states that it's 5/16" (~7.9mm) while two or three sites list it as 7.75mm. I'm a little bit confused. Does it differ in different internal width? Does it differ between singlespeed and ...
2
votes
2answers
167 views

Lowest rideable gear ratio

What is the lowest rideable gear ratio (chainring/cassette) possible without feeling like having to balance/trackstand? I'm doing some virtual simulations right now and I'm just setting up IRL limits. ...
9
votes
5answers
6k views

What causes chain suck?

Specifically when changing gears from middle chain ring to smallest, the chain will sometimes get 'sucked' up between the inner chainring and chain stay. It seems to happen more often in muddy ...
3
votes
1answer
163 views

Vintage bike - help with chainring replacement

I recently broke the large chainring on my vintage bike, and need to replace it, but am having trouble determining what size I need. I lost the chainring on the ride home, so am measuring the bolt ...
2
votes
3answers
430 views

How to remove hex crank bolt

I have been looking online for tutorials on replacing a chainring (or three) for my Scott mountain bike: https://www.thebikelist.co.uk/scott/aspect-40-2012 When trying to take off the chainset so ...
0
votes
1answer
106 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. ...
0
votes
1answer
93 views

Could I add chain rings, front derailleur, and shifter for the front derailleur from other bike?

I have a bike that has only one chainring and no front derailleur (obviously). Could I take the chainring set, front derailleur and shifter from another bike and put it on my bike? My bike never ...
2
votes
2answers
337 views

Front derailleur hard to move due to gear cable angle

To avoid chain rub on the inside of my derailleur when in the smallest chainring and in the biggest cog on the cassette I've turned the L-screw out / counter clockwise. Now the rub is gone but due to ...
2
votes
1answer
83 views

Single chainring conversion issues

I've got a Specialized Crosstrail Elite. I want to get rid of the front derailleur and go for a single front chainring. Its a 68mm BB shell but needs a 73mm BB with spacers. It currently has a FSA ...
0
votes
1answer
114 views

Shimano Sora FC-3503 chainrings

I want to change my 50T chainring of my Shimano Sora FC-3503 crankset. Do I have to buy the same one or other chainrings are also compatible with it? If yes could you give me some light which ones ? ...
2
votes
1answer
192 views

How do I tell what width chain my used chainring needs?

I bought a used crankset from my local bike collective. It has a single 44-tooth chainring and I intend to use it for a single speed conversion with a new cog and chain, but I need to figure out what ...
0
votes
1answer
121 views

Use 105 crankset on 9x2 Sora equipped bike

Want to ditch my basic square taper FSA Vero (50/34) crankset on 9x2 speed Sora drivetrain (2018 Devinci Silverstone 2) in favor of 105 compact crankset. I will attempt to get one in 50/34 not to mess ...
4
votes
1answer
273 views

Chain falls between the chainrings of the front derailleur when shifting from the big ring to the small one

The issue I have is that at the new bike I'm looking to purchase I'm faced with the followings: the chain falls between the 2 chainrings of the front derailleur when shifting from the big ring to the ...
-1
votes
2answers
403 views

I’m unsure what I need to change to 1x chainring

I’m looking into upgrading my bikes chainring to a single one, I took off the one I have on my bike currently and there is no way of transferring the crank arm to the single chainring, I’m unsure what ...
1
vote
2answers
133 views

My chain skips on the front chain rings. What do I do?

I currently ride a Cannondale Catalyst 3 and I've noticed my chain doesn't like to catch on my front chainrings. I'm very new to mountain biking and I am on a very low budget, so is there any way to ...
0
votes
1answer
292 views

Chain getting stuck between large chain ring and front mech when changing into big ring

15+ year old Scott MTB. When changing gear from mid to large chain ring the chain gets pinched between the mech and the large chain ring. Tried adjusting the max min screws, problem persists. Old bike ...
1
vote
2answers
3k views

Are aluminum or steel chainrings more resistant to bending?

I mash a lot and wind up killing chainrings. I later find that my chainring warps at the midpoint between two chainring bolts. Usually my first sign that something is wrong is my chain pops off or ...
-2
votes
1answer
111 views

Chain guides; yay or nay? [closed]

So, recently i've bought a new chainring online and it will be sent to my home soon. And i thought to myself, should i get a chain guide? The chainring has narrow wide teeth so the chain will not fall ...
0
votes
1answer
2k views

Can I change chainring size on a dirt jump bike?

I don't know the name of it but there is a part on single speed bikes. The gear? I think right where the crank is connected. Well on bmx bikes and especially dirt jumping bikes it is really small and ...
8
votes
3answers
5k views

Chain slipping on middle chainring

I have recently replaced the chain and the cassette. Previous chain never slipped. I never had any problems with it at all. But I have made about 10 000 km on it and the wear was beyound any limits, ...
1
vote
1answer
90 views

Will extra teeth on a chainring work?

The current chainring im using has 32 teeth but I need to buy a new one. The reason is because the chainring I'm using is actually from a 3x set so the teeth does not have narrow wide teeth which is ...
3
votes
3answers
415 views

Broken Crank Arm - Chainring Connection

I was just riding my bike like normal the other day and the crank arm started slipping. Upon further inspection, I discovered the 'bolt' that connects the crank arm on the drive side to the chainring ...
2
votes
1answer
96 views

Help identifying this chainring

where can find online a chainring with fittings like this?