Shimano XT Hollowtech II BB-MT800 bottom bracket for XT FC-M8000 cranksets.
Using smaller, lighter bearings and a seal system proven on both XTR and road groups, the new bottom bracket reduces weight and bearing drag while improving mud durability. In short, less weight and increased rotational efficiency results in a faster DEORE XT ride.
- Alloy bearing cups
- For 68/73mm shell widths
- Sealed cups keep out dirt and water
- Maintenance free
- Weight: 82g