Efficient.

Rotor's Press Fit 4130 Ceramic Bottom Bracket is the missing piece of the puzzle to install your 30mm axle crankset into a frame with a 41mm press fit bottom bracket shell. Out on the road, this bottom bracket facilitates smooth, efficient pedal turns with silky ceramic bearings designed to weather the miles.

• A bottom bracket for 41mm diameter PressFit shells
• Silky smooth ceramic bearings for efficient pedal turns
• Double seal keeps dirt and grime out of the bearings