SHIMANO BB-MT801

Muddy trail rides, tough gravel trips, and daily commuters who run through rainy days regardless. Shimano's BB-MT801 is a tough bottom bracket that literally protects such hardy feet from "muddy water intrusion" and keeps supporting smooth pedaling at all times.

Positioned as a standard mountain bike component "DEORE XT" grade, it is perfectly compatible with the 24mm spindle (Hollowtech II) cranks of the gravel component "GRX" series.

Shimano's unique, advanced, high-quality sealing construction (dustproof and waterproof seal) thoroughly shuts out the ingress of sand, dust, and rainwater. The bearings last remarkably long and maintain stable rotational performance even in harsh environments.

In terms of weight, the compact aluminum cup design has been designed to minimize waste, which is a great feature that makes the foot area look clean and beautiful.

The aluminum cup design is compact and lightweight, making it easy to keep your feet clean and beautiful. This is definitely a standard item that embodies Shimano's quality and sturdiness, boasting overwhelming reliability at a reasonable price.

SPEC

Type: Thread (threaded / BSA)
Shell width: 68mm / 73mm (*Adjustable with the included spacer)
Crankshaft diameter: 24mm (Hollowtech II compatible)
Grade: For DEORE XT / GRX
Accessories: BB body (right and left), center sleeve, spacers for adjustment (3 pieces)