Wheels MFG PF30 Threaded Angular Contact Bottom Bracket for 30mm Cranks GSRD and ideal for all riding

and ideal for all riding styles from hard fought classics through to long sportives

but substitutes a folding bead material for reduced weight

Solid aluminum head with brass check valve ensures a lifetime of flawless use

Electronic shifting is the gold standard and more bikes are coming equipped with these groups

yet X4 is light enough for cross country and cyclocross

Wheels MFG PF30 Threaded Angular Contact Bottom Bracket for 30mm Cranks GSRD and ideal for all riding*** INBOARD VERSION *** Our best solution for replacing OEM PF30 bottom brackets or for new bike builds. The two machined aluminum cups thread together keeping the bottom bracket 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. Specifications Bearings: Enduro Angular Contact ABEC 5 Color: Black Bottom Bracket Frame