Rotor PF4624 (Pressfit 30) to 24mm Ceramic Bottom Bracket

Rotor PF4624 (Pressfit 30) to 24mm Ceramic Bottom Bracket Info

Installing 24mm thru-axle cranks on a PressFit 30 bottom bracket road bike just got faster thanks to Rotor’s PF4624 bottom bracket with Ceramic Bearings.

The name PF4624 tells you what you need to know. PF is for press fit. 46 for 46mm inner shell diameter. 24 for 24mm thru-axle diameter. This bottom bracket is for the PressFit 30 frames, which feature a 46mm inner diameter on the lip of the opening. PF30 frames have a 68mm shell width. The 24mm diameter refers to the inner diameter of the bearings, which matches the 24mm exterior diameter of the thru-axle that fits this bracket.

Rotor’s 3D24 cranks work with this standard. As do Shimano cranks. And FSA’s MegaExo cranks.

The bearings are considered hybrid bearings: steel races and ceramic balls. Ceramic balls are rounder, roll smoother, and need less attention than steel. The BB itself is machined 7075-T6 aluminum and anodized for a great look. You press in one side, insert the sleeve, press in the other. Weight for the set is 128g.

The Rotor PF4624 sets your PressFit 30 frame up with a bottom bracket for 24mm cranks. The ceramic bearings roll and roll and roll.