FSA

MegaExo Steel Mountain Bottom Bracket for BB89.5 and BB92

Durability Meets Compatibility for Mountain Performance


The FSA MegaExo Steel Mountain Bottom Bracket is designed specifically for BB89.5 and BB92 press-fit frames and is optimized for use with FSA Carbon ARC cranks. With rugged steel cartridge bearings housed in lightweight plastic cups, this bottom bracket offers reliable, long-term performance for demanding off-road conditions.
Engineered to deliver smooth rotation, easy installation, and consistent durability, it's the perfect match for riders seeking a solid, cost-effective solution to support their high-performance carbon cranksets.

Key Features:

• Fits BB89.5 and BB92 press-fit MTB frames
• Compatible with FSA Carbon ARC cranks
• MegaExo spindle interface
• Durable steel cartridge bearings for long service life
• Lightweight plastic cups reduce weight and resist corrosion
• Designed for mountain bike applications - trail, XC, and enduro

Whether you''re building up a carbon trail machine or replacing a worn-out system, the FSA MegaExo Steel MTB Bottom Bracket delivers dependable performance on any terrain.