T47 for 24mm Cranks - External Cups

T47-External, Threaded, Bottom Bracket for T47 (68 and 73mm) Framesets and Shimano 24mm Cranksets Available with the best Enduro XD-15 ceramic bearings or with 440C stainless bearings. Both featuring angular contact design to best handle pedaling forces while riding and prolong bearing life. Cups thread into frame ensuring perfect fit and no unwanted movement over time. No special presses or retaining compounds are necessary. Larger diameter cups mean larger bearings.  All bottom brackets proudly USA made at our machining facility in Gilroy, California. 3 colors available to choose from: Black, Red, and Blue. This BB uses a Shimano 10-speed Hollowtech II installation tool, such as the Park BBT-9 or our TorqTite BRT-009.