BB90 and SRAM GXP Cranks

[dusty_nz]

Any ideas / suggestions on a BB to joing these two items together.

Option 1 is to use a standard Shimano BB90 bottom bracket and a 1mm shim on the Sram axle to take it to 24mm+24mm axles

Option 2 is to buy the shimano BB90 BB and replace the non driveside bearing with a 22mm ID bearings.

Any Others?

 

[The Duckmeister]

Seeing as BB90 is just standard press-fit (unless it's a Trek roadie, which is a unique beast), why not just get a GXP press-fit?

 

[Alo661]

Seeing as BB90 is just standard press-fit (unless it's a Trek roadie, which is a unique beast), why not just get a GXP press-fit?

Some Trek MTB's did have BB90/95.

Just buy the bearing and seal for SRAM cranks, can source this from Wheels MFG as well. Might be cheaper than getting the Trek kit. http://wheelsmfg.com/bottom-brackets/bb90-95/bb90-95-parts.html

Using a shim without the bearing cover/seal will lead to more grit getting into it quicker. But hey, it's a BB90/95, they don't last more than 3 months.

 

[99_FGT]

You sure it is BB90 on a trek? thought trek's were BB92 (90mm width with a 42mm spindle)
90% I have a press fit BB out of a trek that has done very little use you can have for very few $ if you want it. I'll get details tonight