XT BB‑MT800

The Shimano XT BB‑MT800 bottom bracket delivers smooth, durable performance for MTB riders using 24 mm Hollowtech II cranksets. Its improved sealing and small‑ball‑bearing design help reduce friction and extend service life, while the BSA threaded cups ensure a secure, reliable fit on 68/73 mm frames.

• Better sealing for long‑lasting performance

• Small ball bearings for smoother rotation

• Designed for Shimano 24 mm MTB cranks

• High‑quality sealed cartridge bearings

• Includes three 2.5 mm spacers

• BSA threaded shell, 68/73 mm width

• 24 mm Hollowtech II interface

• Includes TL‑FC25 adapter for use with TL‑FC36 or similar tools