PressFit 30 Threaded Angular Contact bottom bracket - BlackThe two machined aluminum cups thread together ensuring the bottom bracket remains stable in the frame, increasing bearing life, and simplifying maintenanceServiceable, double lip sealed Angular Contact Enduro bearingsUSA machined aluminium shell for superior function and durabilityNo more creaking, smoother operation, longer bearing life, and really quick bearing replacementlDirectly replaces all OEM PF30 bottom bracketsBlack anodized