BB Size

Rat Rod Bikes Bicycle Forum

Help Support Rat Rod Bikes Bicycle Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Joined
May 15, 2011
Messages
563
Reaction score
21
Location
Little Rock, Arkansas
Rating - 100%
6   0   0
I'm trying to switch the 3 piece cranks out on my singlespeed but I don't know which size to get.

I guess my pedal wasn't tightened all the way in on my last ride or it came loose and pretty much ripped the threads out of the right side of my crank.

Here's a picture of the bike if that helps.

4791f2d13a2a63f3ab5ad638589f02a4.jpg
 
If your crank arms are just damaged you should be able to replace the cranks without replacing the BB. Any singlespeed crank should work with the axle length of the current bottom bracket.
  • Just make sure the new crank has the same BB interface- Square Taper, ISIS etc....
  • Also make sure the cranks are the same length as the old ones (170, 172.5, 175mm)
  • The new cranks may come with the chainring. Double check if you are running 1/8" single speed chain or 3/32"
 
Last edited:

Latest posts

Back
Top