Specialized S-Works Bottom Bracket Adapter New without packaging Reducer allows you to convert your BB30 bottom bracket to a 24mm Will also work with some PF30 frames For Shimano Crank spindle Will fit other 24mm Cranks FSA Etc Wont work with GXP Cranks Made from Alloy Super Stiff for great power transfer Wont flex like cheaper Nylon/plastic reducers For Road/Racing Bikes Came with S-Works Specialized Frames Anodized Black Any questions please ask Please checkout my other items Thanks for looking
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