- Road cassette with Fluid Drive Plus shift profiling, compatible with SRAM and Shimano 9sp drivetrains
- Compatible with HG 8-11sp freehub bodies
- Lightweight-design steel rings, engineered polymer spacers, alloy lockring
- Nickel plated finish
| Model | CSR91 |
| Freehub Type | HG (8-11sp) |
| Speed | 9 |
| Range | 11-28 |
| Cogs | 11 |
| Color | Silver |
| Weight | 284g |