SRAM XX1 XG1199 11 Speed Cassette 10-42T Fits XD Driver Body: 11SPD 10-42T

Sram:

The single-unit cassette combines with the XD Driver Body for a superior connection to the wheel.

Ranging from 10- to 42-tooth, the 11-speed X-DOME delivers an incredibly wide gear range while maintaining even, optimized steps.