• Oversized Cartridge Bearings

• Forged Steel And CNC Machined External Cups

• Composite Centre Sleeve With Double O-Ring Seals

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.

Compatibility:

Omega MegaExo