Rim: 24/26/27.5/29 "aluminum alloy double rivet rim, 32 holes, beautiful nozzle, anodized. Base: HG/MS/XD 12 speed aluminum alloy 7075 six claw base (HG8-11 speed installation need to add a gasket,12 speed flywheel direct installation), HG7 speed card fly need to add 3 gaskets.
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