Features of the SRAM RED XG-1290 cassette
- Revised construction for smoother, quicker shifts
- X-DOME™ design with a very lightweight sprocket set milled from a block of steel
- Progressive gear graduation (at least five gear jumps with a single tooth)
- small pinion with 10 teeth to extend the range of gears
- compatible with XDR freewheels
Material:
- Sprocket: Tool Steel (Heat Treated).
- large sprocket: aluminum (heat treated, hardened)
- elastomer rings
Scope of delivery: cassette including locking ring