Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

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

3
votes
2answers
58 views

Convert from 3x drivetrain to 1x with 3x cranks

There has been some teeth on my front chainring chipped away from knocking on some curbs. I'm thinking of buying a 1x drivetrain because I rarely change the front gear. Can I put a 1x chainring on a ...
4
votes
2answers
366 views

Is it possible to mix the rings in the crankset?

I wonder about such setup as buying 48/36/26T crankset and then replacing the smallest (26T) chainring with 22T one. What I am afraid of that I would get quite significant 14T in difference and when ...
1
vote
1answer
43 views

Chain ring size

I have a 50/34 chainring and 11-25 cassette. I don't yet feel strong enough to go to the big chainring and keep cadence at 95+. I can however push the 11 gear in the small ring for duration and hold ...
5
votes
2answers
838 views

How worn is this chainring?

I have the chainring shown below. It's the front sprocket of an ebike. Does this chainring need replacing or are the teeth still OK?
1
vote
1answer
54 views

Chainring and chain compatibility for Suntour chainring

just ordered a new chainring for my nexus-8 equipped longtail bike, it's a suntour 48 tooth chainring shown here: https://www.srsuntour.com/products/32-tooth-chainring?variant=27528743299 it's a ...
2
votes
1answer
59 views

50t / 38t Shimano Zee crankset double 10 speed casette old mountain bike commuter conversion

I'm creating a commutter from an old mountain bike - a 2006 specialized rockhopper pro. I have a bunch of components hanging about and I have a Shimano Zee front crankset with a 38t and I have a 50t ...
3
votes
1answer
153 views

Chainring bolt stuck in 105 FC 5800 chainring

See my update at the bottom of the question When installing my 4 bolt Shimano 105 FC 5800 chainrings on a modified FSA Gossammer Crank (TEAM ZWATT ZPIDER) I first test fitted the chainrings with ...
2
votes
3answers
166 views

How long can I safely use a chain for?

My chain is well over the 0.75% extension at which I would normally replace it. However, the cassette and chainrings are also old enough that a new chain would slip on them, so they would also need ...
2
votes
1answer
67 views

How do I figure out what crankset replacement will fit my derailleur?

I have a bike with a Shimano FC-M560 crankset in the front which I want to replace. I naively bought a Shimano FC-TY301 crankset, thinking that there's norms and that 3-speed cranksets are more or ...
6
votes
3answers
559 views

Replacing an FSA chainring

I would like to replace my chainring for a bigger one. I looked up my bike specs and it comes with a FSA CK-316BT, KSS, 42T chainring. I couldn't find any information about this, so I don't know how ...
9
votes
2answers
1k views

Why is cross chaining 'bad', but 1x is OK?

When you run 1x, aren't you basically force to cross chain?
0
votes
1answer
55 views

Is the 30 teeth chainring on Campagnolo Mirage 52/42/30 crankset replaceable?

I have new (for me) 2008 Orbea Onix TDi with existing 50/34 front crankset. My shifter is 3 steps - to switch from 1st to 2nd I have to click twice. All parts are Campagnolo Mirage. Climbing the ...
1
vote
1answer
94 views

How to change small chainring

I have a bike with a 46/36T crankset (FSA Gossamer Cross BB30) and I'd like to change the small chainring to an even smaller one. ​Googling around ​suggests that the smallest chainring I can get for ...
5
votes
2answers
357 views

Ideal distance between chainring and chain stay

I am building a single speed bicycle, and I have most of the drivetrain parts: Rear hub 18T rear cog (40-40.5mm ideal rear chainline -- wheel undished) 1/8" chain crankset with 40T chainring I used ...
1
vote
1answer
52 views

8 speed chainring with single speed 1/8" chain

Can I use a chainring designed for 6/7/8 speed with a single speed, 1/8" chain? The rear wheel only has a single cog - no derailleurs.
1
vote
1answer
108 views

Should I get a smaller chainring or bigger cog?

I built a single speed bike about a year ago, and am starting to change out parts to make it more comfortable for me. The first thing I'm wanting to change is the gear inches, which I didn't give much ...
2
votes
1answer
428 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
0answers
62 views

New bike and drive train feels like it slips on every crank rotation?

I bought my wife a new bike and she said It is "slipping". I took it for a ride and sure enough, it feels like it is slipping just a tad on every rotation. Its not an in-between gear or tooth slip. ...
2
votes
2answers
219 views

Is it possible to fit a 36T chainring on a 34T frame?

I'm thinking of building a bike from scratch around a Commencal HT AM 2018 frame, which normally comes with a 32T front chainring (1x setup) and says it takes 34T max. However a 36T would be ideal for ...
6
votes
1answer
118 views

Are granny gear chainrings supposed to have directed teeth (i.e., be non-flippable)?

I was replacing a worn-out 34-teeth chainring on my MTB crankset. In the course of the work, I detached the granny gear chainring (22-teeth). Compared to the big chainring, which has all these ramps ...
5
votes
4answers
424 views

Can't find any replacement original chainrings (SG A-52-42-30) . What can I use instead?

I have an early 2000's Giant OCR 2 roadbike (3x8 speed) with worn out chain rings on the Shimano Sora FC-3303 triple crankset. The original rings are the SG A-type, 5 bolt, 130 mm BCD in 52T-42T-30T ...
2
votes
2answers
100 views

how to install a chainguard, when the chainring doesn't have screw holes?

I'd like to install a chainguard like this: on a bicycle that's will be spend it fair amount of time commuting, but on closer inspection I see that the largest chainring doesn't have the necessary ...
3
votes
2answers
613 views

Does it make sense to switch to single chainring on an older mountain bike?

Very recently I've started seeing a setup like this on pretty regular bikes: (Image taken from CyclingID forum) Appeal of the single chainring To me the positives of this setup became quite obvious ...
1
vote
2answers
86 views

Chainring sizes for 11 speed cassette

I have an 11 speed cassette 11-32 teeth. I am running a 52 teeth chainring on the front. What would be a good recommended smaller chainring for the front? It needs to be big enough to take up the ...
2
votes
2answers
207 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 ...
1
vote
1answer
239 views

What are the physical advantages of riding a single speed with higher chainrings?

Ever since my aero road bike was stolen, I have been riding a cheap single speed bike on average 6 miles a day. The crankset was cheap and I recently switched to Sram Ominium 48t vs what the bike had ...
4
votes
1answer
53 views

Can I use a narrowide chainring on a double rings crankset?

I would like to go touring using my narrowide chainring, but I would like as well to put a smaller chainring (the infamous Grannie) so that I could have it as a last resort in case of really hard ...
4
votes
2answers
212 views

Mismatched chain and chainring

Why specifically would shifting between chainrings of one speed type with a chain of another cause problems? As I understand it, all 3/32 inch chains have that as their interior width; the variance ...
4
votes
1answer
2k views

Replace a 52/36 crankset with 50/34

I'm looking at purchasing a new bike with a 52/36 crankset on a 11-32 cassette. I've grown accustomed to a 50/34 crankset on the same cassete, and for the type of riding I do in the PNW (300-400ft ...
0
votes
1answer
123 views

Chainring use of teeth

At any instant how many teeth in a (not new) 52 chainring are actually doing the chain pulling when torque is being applied.
2
votes
2answers
144 views

Replaced my crackset, chain keeps popping off the small chainring under load

Looking for a little lower gearing on my gravel bike, I replaced the crankset with a FSA Omega with 46/30 chainrings, along with a new bottom bracket & chain. If I stand on the pedals while on ...
2
votes
2answers
1k views

How to choose a compatible set of chain, cassette and chainring?

I would like to change the chain, cassette, and the chainring of my bike. The cassette has 7 speed and chainring has 3. Is any combination of 7 speed cassette and 3 speed chainring built by any ...
0
votes
2answers
148 views

How many sprockets can I fit on a crank?

So, I have a pair of ambidextrous shifters on my bike. In other words, both shifters are ten-speed so that you can change the "handedness" of your handlebar if you want. This got me thinking, they ...
1
vote
1answer
60 views

I'm looking for a chainring compatible with bb86

I'm trying to invest in a new powermeter (never had one) but my current cranks are FSA Gossamer which are no longer in stock by most. I looked at power2max and they don't have a compact chainring. Is ...
5
votes
1answer
106 views

Alternative to tuning automatic hub?

I am contemplating purchasing an automatic gear hub, namely the SRAM Automatix. One of the criticisms leveled at this hub is that it shifts up too soon. The default settings can however be adjusted if ...
1
vote
1answer
61 views

is it possible to put a bigger than 34t chainring on Merida e160?

Is it possible to put a bigger than 34t chainring on a Merida e160 MTB? There is only about 2mm of clearance from the chainstay.
3
votes
2answers
93 views

Replaced chain, now the chain falls onto the small chaining

I rode for a little while longer then I should have with my old chain, so I replaced the old chain and cassette. But now when I ride in the big ring, the drivetrain makes a horrible sound and the ...
3
votes
1answer
374 views

Can I use a 3x10 or 3x9 speed (front) chainring in a 3x8 speed drive?

I'm having a hard time finding a new 42T chainring to replace the old one in my 3x8 speed drive, and the only option seems to be to go with a 42T chainring designated for 3x10 speed setups. Anybody ...
1
vote
1answer
321 views

SG-X chainring compatibility issues

Must I swap my SG-X chainrings with SG-X replacements or can I use anything with the same BCD? My current Deore LX FC-M560 has 26-36-46 rings and I was thinking of replacing them with TA rings. ...
1
vote
2answers
490 views

Mongoose Malus Chainring upgrade

I have a mongoose malus. It has a 36t chainring in the front and a 7 speed in the back. If I wanted to have higher gears can I replace the front chainring?
4
votes
5answers
796 views

Difference between two drivetrains with the same gear ratio?

Given two identical, fixed-gear bicycles, one with a 36/12 gear combination and another with 48/16, will there be any noticeable difference when pedaling these two bicycles? I understand there may be ...
0
votes
2answers
65 views

Fixing balky front shifting

I've got a Campagnolo Chorus 2x9 drivetrain on my bike. Lately I've found that shifting to the big ring is very difficult: The only way to get it to shift at all is to make a simultaneous front and ...
0
votes
2answers
427 views

Chain Slips in certain gears

I have noticed that I can not get my rear derailleur to sit perfectly allowing all of my gears to feel good. Mid range often feel a bit lumpy or there good when using either one of the front chain ...
2
votes
0answers
79 views

Nasty noise from chain device

Hi I've purchased and fitted a superstar components plasma chain device in my specialized big hit. It makes a terrible noise and I really don't see why. As far as I can see I've set it up correctly ...
1
vote
1answer
159 views

Group Set Swap, Tourney to Claris

I've just bought a used road bike. after I arrived home I noticed one of the chain ring teeth was snapped. I have a spare flat bar bike which I believe to be much newer than the one I bought. ...
3
votes
2answers
1k views

Is there an inherent problem with expanding chainring drives such as Veridrive and WaveTrans?

The Veridrive is just the latest iteration of the idea of using an expanding or contracting chainring rather than a derailleur for shifting: There also WaveTrans: ...
0
votes
2answers
353 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
0answers
445 views

Is Shimano 36/24 double crankset possible?

I'd want to exchange my triple crankset with double. After playing with gear calculator and testing some double setups, I came to the conclusion I need 36/24 gearing. I have 10 speed drive, so I'm ...
1
vote
1answer
126 views

Chain contact on rear triangle

Hi can anyone help with some advice. I have built up a 2007 specialized big hit 2 and fitted it with a 32t narrow wide chain ring as that is what I've been used to riding. It rides great it handles ...
3
votes
2answers
471 views

How to remove a (press fit?) crank arm from a chain ring?

Does anyone know how to remove this crank arm? Or if it can be removed? The bike was ~$250 and seems to have a lot of 'don't take this apart' engineering, I'd like to soak the chain rings in rust ...