The FSA BB-4000 Omega MegaExo Bottom Bracket is designed to fit FSA’s MegaExo 19mm diameter chromoly spindle cranksets. The BB-4000 has forged and machined alloy external cups and oversized cartridge bearings for smooth and reliable running. The bearings themselves are made from chrome steel and the BB-4000 is only compatible with Omega 19mm spindle aluminium cranks.
Unyielding performance and powerful braking are the hallmarks of the Racer kit. Designed specifically for road bikes the Racer kit will provide consistent & smooth shifting and amazingly powerful braking.