Rotor Press Fit 4630 bottom bracket cups

Upgrade your bike with the ROTOR Press Fit 4630 bottom bracket, designed for seamless integration of 30mm cranks into modern press-fit frames. Its Universal Bottom Bracket (UBB) concept solves compatibility issues, fitting 46mm diameter BB shells. Crafted from 100% CNC-machined 7075 aluminum with advanced sealing, it offers maximum stiffness, smooth and reliable rotation, and extended bearing life for both MTB and Road cycling. Compatible with PF30, BBright, and BB386evo standards