CeramicSpeed Ceramic Race Coated Bottom Bracket - Threaded to BB30

The CeramicSpeed Ceramic Race Coated Bottom Bracket - Threaded to BB30 solves a real-world compatibility problem: you want to run a 30mm-spindle crankset, but your frame has a standard threaded bottom bracket shell. This unit presses CeramicSpeed's ceramic bearings into Rotor-made cups, giving you a clean, reliable path from threaded shell to BB30-spindle cranks — without compromise on bearing quality.

The bearings are the reason this bottom bracket exists beyond simple adaptation. CeramicSpeed's Grade 3 Silicon Nitride ceramic balls are harder and smoother than standard steel balls, and significantly smoother than conventional ceramic alternatives — all seated in hardened steel races to keep friction low and service intervals long. The Race Coated designation reflects a surface treatment on the bearing races designed to further reduce friction and extend durability under sustained load.

CeramicSpeed Ceramic Race Coated Bottom Bracket Specs at a Glance

• Compatibility: 30mm-spindle (BB30) cranks
• Shell threading: English (68mm) or Italian (70mm) — available in both
• Bearing type: Grade 3 Silicon Nitride ceramic balls in hardened steel races
• Cup construction: Rotor-made cups with CeramicSpeed bearings pressed in
• Colour options: Black or Red