FSA BB86 MegaExo Bottom Bracket

Run your 24mm spindle crankset on a press-fit frame with confidence. The FSA BB86 MegaExo Bottom Bracket is a press-fit bottom bracket designed to bring FSA MegaExo and Shimano Hollowtech II 24mm spindle cranksets into BB86, BB89.5, and BB92 frame shells — covering a wide range of road frames from brands including Scott, Giant, and others that use this press-fit standard.

Alloy cups press cleanly into the frame shell and house sealed steel cartridge bearings for smooth, durable rotation and excellent resistance to contamination. The aluminium cup construction keeps weight low while maintaining the rigidity needed for efficient power transfer, and the included bushing ensures correct spindle alignment and prevents lateral play.

Please note: the BB86 standard specifies an 86.5mm shell width. If your frame uses BB92 (92mm shell width), this bottom bracket is also compatible. Check your frame's shell width and shell ID (41mm) before ordering to ensure correct fit.

Key Features:
- Press-fit BB86 / BB89.5 / BB92 compatible
- 24mm spindle compatibility — fits FSA MegaExo and Shimano Hollowtech II cranks
- Sealed steel cartridge bearings
- Aluminium alloy cups
- Shell ID: 41mm
- Shell width: 86.5mm (BB86) / 89.5mm (BB89.5) / 92mm (BB92)
- Includes bottom bracket bushing
- Intended for road use