Posted by AITA Ceramic on 5th Dec 2016

How to choose bottom bracket

Question: How to choose the right bottom bracket for the different frame and crankset standards?

Answer: Please refer to the below compatibility matrix and the links to find the right AITA ceramic bottom bracket. AITA Ceramic provides the solutions transferring in between the different standards with no adapters or spacers.

AITA Ceramic
Bottom Bracket
Crankset
Shimano
(24mm Spindle)
SRAM
(22mm GXP Spindle)
Campagnolo
(25mm Spindle)
BB30
(30mm Spindle)
Other
(30mm Spindle)
Pressfit Frame BB30
(ID42mm,W68mm)
BB30 Shimano Road BB30 SRAM GXP BB30 Campy BB30 BB30 EVO386
(EVO386 crank)
PF30
(ID46mm,W68mm)
PF30 Shimano Road PF30 SRAM GXP PF30 Campy PF30 Road -
BB30a
(ID42mm,W73mm)
BB30a-24 - - - BB30
PF30a
(ID46mm,W73mm)
PF30a-24 - - - PF30 Road
BBright
(ID46mm,W79mm)
BBright Shimano Road BBright SRAM GXP BBright Campy - BBright
(BBright crank)
PF30 OSBB
(ID46mm,W62mm)
PF30 OSBB
Shimano Road
PF30 OSBB
SRAM GXP
PF30 OSBB
Campy
PF30 OSBB -
EVO386
(ID46mm,W86.5mm)
EVO386 Shimano Road - - - EVO386
(EVO386 crank)
BB86
(ID41mm,W86.5mm)
BB86 Shimano BB86 SRAM GXP - - BB8630
(EVO386 crank)
Threaded Frame English thread
(BSA1.37"x24TPI W68mm)
BSA Shimano Road BSA SRAM GXP BSA Campy - BSA30
(EVO386, Rotor 3D+, Rotor 3DF, THM,
Zipp crank)