Machined engineering-grade Delrin inserts for adapting bottom brackets to a different type of crankset spindle. Adapts SRAM/Truvativ GXP cranks to work with 386 EVO bottom brackets Derlin adaptors fit between bearings and crank spindle BB30-SPC spacers inc
Machined engineering-grade Delrin inserts for adapting bottom brackets to a different type of crankset spindle.
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