The perfect companion for your direct drive trainer! The Direct Drive Shimano/SRAM Bike Trainer Freehub (9729T) is a trainer accessory that is compatible with the Saris H3 Direct Drive Smart Trainer, as well as the CycleOps Hammer and H2. The Hyperglide freehub is compatible with Shimano and SRAM 11-speed systems. However, 12-speed systems cannot be used with the H3 Direct Drive Smart Trainer, as well as the CycleOps Hammer and H2.
Key Features: Compatible with Saris H3 Direct Drive Smart Trainer Compatible with CycleOps Hammer and H2 Hyperglide freehub made of aluminum Compatible with Shimano 11-speed systems Compatible with SRAM 11-speed systems Not compatible with 12-speed systems
