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Amazon.com : SHIMANO Alfine Di2 11 Speed Internal Geared Bicycle Disc Brake Hub SG-S7051-11 for Center Lock Disc with Cover in Black - 32H : Sports & Outdoors
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Amazon.com : SHIMANO Alfine 11-Speed Internal Geared Bicycle Disc Brake Hub - SG-S7001-11 (Silver - 32H, 135X187MM) : Sports & Outdoors
Shimano Alfine 11-speed SG-S700, SG-S705, SG-S7001-11, SG-S7051-11 135mm Rear hub dimensions | Freespoke
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