ROTOR PressFit 4130 Ceramic bottom bracket.
With this bottom bracket bearing, Rotor BB30 cranks can be mounted in frames with a Pressfit housing Shimano. The bearings have an external diameter of 41 mm. The bearings used have ceramic balls which, due to their significantly higher hardness and smoother surface, should minimize friction in the bearing and increase durability.
Technical data :
Material: Aluminium 7075
Bearing: Ceramic double-row industrial ball bearing
Frame: BB86, BB92 BB89.5 and Crank set: BB30
Bottom bracket inner diameter: 41 mm
Bottom bracket width: 86.5-92 mm
Colour: black (ceramic)
