Zipp Speed Weaponry Freehub Bodies 10 to 11-speed wheel conversion can only be completed by an authorized Zipp Service Center. Includes cassette spacer. Not intended to convert older 10-speed freehub wheels to 11-speed freehub wheels. Only intended to swap freehub compatibility (SRAM/ - Campagnolo) with current 11-speed wheels. Item Specifications: Material, Aluminum, Cassette Body Type, /SRAM 11 Speed Road,.
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