Model: External Threaded Hollow Bottom Bracket. Model: External Threaded Bearing Bottom Bracket. Material: Aluminum Alloy Body + Resin. Bearings: High-Quality Dual Bearings. Weight: Approx.
Hollowtech Threaded Bottom Bracket MTB Road Bike Crank BB Bearing 68-73mm
Oxford Unisex Hollowtech Threaded Bottom Bracket (68/73mm) | BB Cycle Bike Maintenance, Black, 68/73mm EU
MEROCA Hollowtech Threaded Bottom Bracket MTB Road Bike Crank BB Bearing 68/73mm
