BBT-118

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• Shimano Octalink drive-side bottom bracket cups with external notches • ISIS Drive bottom bracket cups including Truvativ and Bontrager • Front chainring lockring for Bosch Gen 3 , Gen 4, and Gen 5 e-bike systems • Front chainring lockring for Specialized Levo Brose e-bike systems • 8 notches with a nominal inside diameter of 37.6 mm and outside diameter of 42.7 mm • Internal clearance: 31.14 mm (1.226") depth (from tool face) x 22.48 mm (0.885") diameter Show more