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

3 votes
3 answers
2k views

Where can I find a 130 bcd single speed chainring with 58 or 60 teeth?

Where can I find a 130 bcd single speed chainring with 58 or 60 teeth? I am attempting to setup a goldsprints setup using a very large front ring and a small rear freewheel. …
Benzo's user avatar
  • 18.3k
1 vote
2 answers
4k views

Are aluminum or steel chainrings more resistant to bending?

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 breaks and I can see the bump in the chainring that caused it. …
Benzo's user avatar
  • 18.3k
5 votes
2 answers
503 views

Is the same effort required to maintain a set speed using different sized chainring / cog co...

If I have a bike with the same cranks setup with a 36t (chainring) / 12t (cog) ratio and the same bike setup with a 48t (chainring) / 16t (cog) ratio, would the effort required to maintain a set speed …
Benzo's user avatar
  • 18.3k
0 votes
2 answers
4k views

Race Face Crank/Chainring Compatibility

However, I pulled a 104 BCD chainring off a Shimano Acera Crankset and the rings don't interface properly with the Race Face cranks. … The chainring bolts line up, but the shape of the ring below the crank bolts has a different curvature and doesn't mate with the crank spider. …
Benzo's user avatar
  • 18.3k
5 votes
7 answers
11k views

How to measure chainring / cog wear?

Other than attempting to estimate whether a chainring or cog is worn and needs replaced by eyballing it, is there any way to measure the wear on chainrings or cassette cogs so you can determine whether …
Benzo's user avatar
  • 18.3k
1 vote
1 answer
736 views

How do you remove the sprocket from an eighthinch splined BMX style crankset?

What should I do to remove the sprocket (aka chainring)? …
Benzo's user avatar
  • 18.3k
3 votes
1 answer
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? …
Benzo's user avatar
  • 18.3k