PF30

BB30 requires higher manufacturing tolerances of the bottom bracket shell, consequently PF30 was developed, where the bearing sits in a housing, in turn the housing (with the installed bearings) are then pressed in the frame.
C-Bear pioneered in replacing plastic housing to cnc-precision-machined aluminium housing for higher tolerance, to ensure tight fit and to eliminate flex and creaking #befirst #leadnotfollow.

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