Shimano® XT Hollowtech II BB-MT800

Updated HOLLOWTECH II threaded (MT800) bottom bracket. 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 ride.

• Small ball bearings for better rotation

• Better sealing

• Bottom bracket spindle profile: Hollowtech II

• Weight: 78 gram

• BB Width 68/73mm

• Bottom bracket spindle profile: Hollowtech II