New design features improved spline geometry and 3/8` drive pocket for use with torque wrenches. Fits 12-notch X 46mm diameter external bearing bottom bracket cups. Designed to stand up to the harsh conditions of professional use. Precision laser cut design with ergonomic cushioned grip. Fits 12-notch external bearing bottom bracket cups including SRAM DUB Zipp Vuma Race Face Cinch Rotor BSA30 Hawk Racing BB3086 and more

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