Direct Drive Shimano/SRAM Trainer Freehub
$69.99
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Product Features Compatible with the Saris H3 Direct Drive Smart Trainer, as well as the CycleOps Hammer and H2. Hyperglide freehub is compatible with Shimano and SRAM 11-speed systems. 12-speed systems cannot be used with the H3 Direct Drive Smart Trainer, as well as the CycleOps Hammer and H2.
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