Shimano XT Bottom Bracket

This bottom bracket is designed for frames with a standard English threaded shell, which is the most common interface for mountain bikes. If your frame uses a press-fit system, this model will not be compatible.

Yes, the MT800 typically includes the required spacers to ensure proper fitment across various shell widths, such as 68mm or 73mm configurations.

The XT-level MT800 features improved sealing and higher-quality bearings compared to entry-level options. These upgrades result in smoother rotation and better protection against water and grit, extending the lifespan of the component.

You will need a specific bottom bracket tool compatible with the Shimano Hollowtech II standard. Because the MT800 uses a smaller bearing cup diameter than older standards, you may also need a plastic adapter tool to fit your wrench to the cups.

The MT800 is specifically engineered for Shimano Hollowtech II cranksets with a 24mm spindle. It is generally not compatible with cranksets from other brands that use different spindle diameters or proprietary interfaces.