Wheels MFG Threaded PF30A Outboard Bottom Bracket for Shimano bikebox Low profile Clamp

Low profile Clamp

135 or 142 millimetres

UD carbon fibre crankarms

The Thomson X4 is stronger and 30 grams lighter than the Thomson Elite 25

20g (IS41)

Wheels MFG Threaded PF30A Outboard Bottom Bracket for Shimano bikebox Low profile ClampThe two machined aluminum cups thread together ensuring the bottom bracket remains stable in the frame, increasing bearing life, and simplifying maintenance. This means no more creaking, smoother operation, longer bearing life, and really quick bearing replacement. Specifically designed for installing 24. 00mm spindle diameter cranks (Shimano, Etc.) in Cannondale PF30A (46mm ID, 73mm wide asymmetrical BB shell) frames without the need for any