FSA Ceramic MegaExo bottom bracket uses hybrid ceramic bearing construction. In this arrangement, stainless steel ball bearings are replaced by ones made from Silicon Nitride Ceramic which are separated from each other by a low-friction polymer retainer. These little guys roll on especially hardened steel races and are lubricated with an unique low-viscosity grease.

Ceramic bearings usually produce lower friction for a number of reasons. The balls themselves are much more round than even the highest quality steel bearings and are also much less compressible under load. In short, they start out rounder and they stay that way.

Oversize Ceramic Cartridge Bearings

 Forged and CNC machined external cups

 Alloy center sleeve with double o-ring seals

 English threading 68 width (1.37” x 24T)

 Italian threading 70mm width (M36 x 24T)

 Weight 130 grams

 Bottom Bracket come pre greased and kit includes service grease to use when needed