Shimano XTR M970 Bottom Bracket

Shimano XTR M970 Bottom Bracket

XTR-quality bearing cups for smooth-running longevity.

• The Shimano HollowTech 2 integrated bottom bracket employs outboard (i.e. wider) bearing placement with a larger axle diameter for improved stiffness, efficiency and longevity compared with traditional 3-piece chainsets.
• Lighter weight XTR seals save grams, keep out the elements.
• Smooth-spinning long-lasting maintenance-free cartridge sealed bearings.
• Compatible with either 68 or 73mm bottom bracket shells.

Shimano