Shimano BB-MT800-PA Deore XT Bottom Bracket – Press-Fit, Hollowtech II
The Shimano BB-MT800-PA is a high-performance press-fit bottom bracket designed for frames with a 89.5–92 mm shell width and 41 mm diameter housing. Optimized for Hollowtech II cranks with a 24 mm spindle, it is compatible with Shimano XT, SLX, and groupless Hollowtech II cranks, delivering smooth pedaling and reliable power transfer across a variety of cycling disciplines.
Featuring resin bearing shells, the BB-MT800-PA offers low-friction performance, durability, and precise alignment for consistent drivetrain efficiency. Ideal for cross-country, all-mountain, enduro, city, and touring bikes, it supports aggressive riding and long-distance cycling alike.
Features:
Press-fit design for easy installation in compatible frames.
Hollowtech II 24 mm spindle for smooth, efficient pedaling.
Resin bearing shells for reduced friction and increased durability.
Compatible with XT, SLX, and groupless Hollowtech II cranks.
Suitable for multiple riding styles: XC, AM, Enduro, City, Touring.
Specifications:
Model: BB-MT800-PA
Shell Width: 89.5 / 92 mm
Shell Diameter: 41 mm
Axle Type: Hollowtech II (24 mm)
Bearing Shell Material: Resin
Application: MTB and Road Disciplines
Size: Standard
The Shimano BB-MT800-PA ensures smooth, precise, and reliable drivetrain performance, making it a perfect choice for riders who demand efficiency and durability from their bottom bracket.

