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Weight: 125 g.
This Chris King mountain bottom bracket is specifically engineered to work with crank systems that employ a stepped crank axle (Sram, Truvativ and Bontrager GXP) and includes a fit kit to match the stepped axle to their cups and bearings. Each of the aluminum cups houses 24 stainless steel ball bearings, serviceable by using the Chris King Grease Injection Tool (available separately). 73mm. 125 grams.