CeramicSpeed Ceramic Race Bottom Bracket - Threaded to 25mm (Campy UltraTorque)

Friction is the enemy of efficiency, and the CeramicSpeed Ceramic Race Bottom Bracket - Threaded to 25mm (Campy UltraTorque) is built to minimize it at one of the most mechanically loaded points on your bike. Designed for Campagnolo UltraTorque cranksets in threaded shells — available in English or Italian thread — it pairs Grade 3 Silicon Nitride ceramic balls with hardened steel races to deliver measurably lower rolling resistance than standard sealed cartridge bearings.

CeramicSpeed's ceramic balls are manufactured to a surface finish and roundness tolerance that standard steel bearings can't approach, and they're assembled in dust-free clean rooms before a final quality check. The result is not just reduced drag but extended bearing life — ceramic bearings of this specification are designed to last significantly longer than conventional alternatives. CeramicSpeed's own proprietary grease is included in the bearing, with a syringe provided for reapplication, so you're not left hunting for a compatible lubricant at service time.

CeramicSpeed Ceramic Race Bottom Bracket Specs at a Glance

• Compatibility: Campagnolo UltraTorque cranks (25mm spindle)
• Shell threading: English or Italian — select via variant
• Bearing type: Grade 3 Silicon Nitride ceramic balls in hardened steel races
• Finish options: Black or Red
• Includes: Proprietary CeramicSpeed grease with syringe applicator