Shimano and SRAM BB30/PF30 conversion bottom brackets\n Shimano: Designed to be A Proper BB for installing Shimano Hollowtech II steel spindle cranks in either BB30 or PF30\n SRAM: GXP SRAM/Truvativ/Quarq/ISIS2 steel spindle\n made with Enduro bearings and high Grade grease \n Unauthorized online sales prohibited by manufacturer
- model:
- ACB MR031
- description:
- bearing (49mm) 36x45 degree
- size:
- 1-3/8|each