Shimano BB-MT501 English Bottom Bracket - 68/73mm Hybrid & Touring Tires with a tread pattern that

with a tread pattern that provides confident traction without sacrificing rolling efficiency

Wide tire compatibility and extended frame clearance cover modern geometry bikes that older stands can't accommodate comfortably

featuring an adjustable chain stabilizer that reduces chain slap and drop on rough terrain

The Terra Trail ProTection TR + Black Chili is for riders who go long on mixed terrain and need a tire that earns its keep on every surface

The sleeve protects your hands from the freeze that comes with rapid CO2 discharge

Shimano BB-MT501 English Bottom Bracket - 68/73mm Hybrid & Touring Tires with a tread pattern thatWhat Makes the Shimano BB MT501 the Right MTB Bottom Bracket? The Shimano BB MT501 is the threaded English bottom bracket for Shimano Deore, Alivio, and compatible MTB cranksets using the Hollowtech II interface the outboard bearing system that positions sealed cartridge bearings outside the frame shell for better load distribution and more efficient power transfer. Shimano engineered the BB MT501 with improved sealing over previous threaded MTB