BBI-TT-BO15 (12-notch, 50.4mm, BBT-47 equivalent on one side, and on the other side, 16-notch, 44mm, BBT-69.4 equivalent) Our BBInfinite Threaded BB Combination Socket’s 16-notch side works to install and remove threaded BB’s such asCampagnolo, Chris King, FSA MegaExo, Hope, SRAM/Truvativ GXP, Race Face X-type, Surly, Wheels, Fulcrum, and others. This alloysocket is the only tool you need to install or remove BBInfinite T47i, T47E, and T47A modules and the stabilizer rings on all T47 variants we sell. You will not need another tool. This will do it all. Use a standard 3/8″ square drive.

• Fits: Shimano (incl. BB80, BB5700, XT BB70, BB51), Campagnolo UT, SRAM/Truvativ GXP, Chris King, FSA MegaExo, Hope X-type, Surly, Wheels Mfg, Fulcrum UT, and many more.
• Fits 16-notch rotor disc lockrings
• Requires 3/8″ drive ratchet and a torque wrench.
• Precision CNC machined aluminum, Type-II hard-anodized tool.
• Made in the USA