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Truvativ GXP Black Box Bottom Bracket
* Left and right bottom bracket bearing cup set for use on Giga X Pipe cranks
* BlackBox (hybrid-ceramic bearing) with threaded aluminum cups
* 2.5mm spacers to fit either 68mm or 73mm BB shells
* English (1.37"x24tpi - LH/RH) threads. torque 25-30 ft/lbs
* BB-Cup tool sold separately, use: TV-2501