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For Shimano / FSA ZTTO BB91 Mountain Road Bike Bottom Bracket Press-Fit Threaded Bottom Bracket(Black) (ZTTO)
1. High quality materials, durable and sturdy
2. Lightweight and easy to use
3. Inner diameter: compatible with the matching reducer ring, it can fit 22-24mm
4. BSA: 68/73mm
5. Materials: nylon plastic + aluminum alloy + polyurethane
6. Weight: about 92g
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