i’ve done a lot of upgrading to this bike. it used to have shitty stock cranks. so i threw on my old fit indent cranks. i wanna replace my cranks but honestly i don’t know my bb size lol. i was thinking its 19mm but i wanna make sure before buying a pair.
by Business_Lion6314
6 Comments
Nowdays, most are 19mm.
HOWEVER – you said you put a set of Indents on it?
Indents are 24mm AFAIK
But, if a company is gonna sell you cranks that need a 22 or 24mm spindle, USUALLY they include a BB kit to match.
I’ve got Fit 24mm spindle cranks and they came with 24mm bearings, same with two sets of BSD Substance v2 24mm spindle cranks.
Mid bb 19mm axle for most stock bikes. Crank upgrades usually mean 22mm or even 24mm axles. Still mid sized though
What crank you run will give you the size you need. The spindle diameter is what you want to look for
If the Fit Indents are 24mm, then the spindle is a 24mm. Any 24mm cranks will definitely fit. In this case, the spindle size is key, and if it’s 24mm, then that’s the answer to new crank size. 👍🏻
Had the same bike but earlier year think a 2020 or 21’ but it had a mid 19mm Bb
BB size is the size of the INSIDE ring of the bearing. You can measure that, but in all honesty If you’re going to replace your cranks absolutely replace the BB!