SRAM Dual Drive Features
Combining internal hub gearing and an external cassette body allows a wide range of gearing and component options without the downsides of front shifting.- Combining internal hub gearing and an external cassette body allows a wide range of gearing and component options without the downsides of front shifting.
- Three internal gears can be changed under load, while coasting or when standing still
- Cassette body accepts 8- 9- or 10-speed SRAM and Shimano cassettes
- Shifters and other drive train parts sold separately
- Not for tandem bicycles