The ROTOR Press Fit 4630 Bottom Bracket adapts any PF30, BBRight or 386 EVO bottom bracket shell to fit a 30 mm diameter crank spindle. The ROTOR PF 4630 BB features two cups with bearings pressed in with a sleeve. It is available in steel or ceramic.
Works with PF30, BBRight or 386 EVO bottom brackets
Weight: Steel – 106 grams | Ceramic – 100 grams
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