Saris - Trainer Accessory, Direct Drive XD/XDR Freehub, Compatible with Hammer, H2, and H3 Trainers - Silver
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About this product
The Saris 9728T Direct Drive XD/XDR Freehub is a replacement freehub body compatible with Saris Hammer, H2, and H3 direct drive trainers. It enables the use of XD and XDR cassettes, expanding drivetrain compatibility. Installation is simple—just remove the existing freehub body and replace it with the 9728T to start using your preferred cassette system. This freehub is the perfect upgrade for riders using SRAM XD/XDR systems and looking for a smooth, efficient indoor training experience.
Features
Freehub Body
Easy to install & well-made durable freehub body
XD Adapter
Works with Saris H3, and CycleOps Hammer & H2 trainers
XDR Freehub
Allows XD and XDR cassettes to be used on Saris direct drive trainers
Trainer Freehub
12-speed system can't be used W/H3 Direct Drive Smart Trainer, as well as the CycleOps Hammer & H2
Saris Hub
Lubrication is recommended prior to installation for optimal performance
Specifications
- ColorSilverForm FactorDirect drive trainerCompatible Bicycle Frame TypeUniversal
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The Saris 9728T Direct Drive XD/XDR Freehub is a replacement freehub body compatible with Saris Hammer, H2, and H3 direct drive trainers. It enables the use of XD and XDR cassettes, expanding drivetrain compatibility. Installation is simple—just remove the existing freehub body and replace it with the 9728T to start using your preferred cassette system. This freehub is the perfect upgrade for riders using SRAM XD/XDR systems and looking for a smooth, efficient indoor training experience.

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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 hub 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.

The Saris Thru Axle Adapter is designed exclusively for indoor use with Saris trainers. Compatible with most current basic trainers, it fits bikes with 142mm and 148mm spacing. Not compatible with CycleOps PowerSync trainers. The adapter includes a thru axle, washers, endcaps with bolts, and for 148x12mm setups, a shorter bolt action slider tube. If you’re unsure of your bike’s specifications, consult your local bike shop or the manufacturer. Ideal for securely connecting thru axle bikes to your indoor trainer.
Specs
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