SRAM XX1 Eagle XG-1199 X-Dome 11 Speed Cassette - XD Driver - 11 Speed - 10-42T YGroup_7180501450797 The 661 DBO knee pads

The 661 DBO knee pads are designed to take a beating

The Control uses a soft 25A rubber compound grip that offers comfort and control where you need it

The lockable frame arms hold your bikes securely and can be attached to any part of the frame

What's in the box: One Shimano XTR RT-M900 brake rotor and lock ring

With so many hard to reach places on your drivetrain

SRAM XX1 Eagle XG-1199 X-Dome 11 Speed Cassette - XD Driver - 11 Speed - 10-42T YGroup_7180501450797 The 661 DBO knee padsThe Sram XX1 Cassette is the first of its kind. Ranging from 10 to 42 teeth, the 11 speed X DOME delivers an incredibly wide gear range while maintaining even, optimized steps. The single unit cassette combines with the XD driver body for a superior connection to the wheel. 11 speeds (10 12 14 16 18 21 24 28 32 36 42) Bearing design and ratchet mechanism steadied by XD driver body Creates more stable hub connection Gear steps optimized across entire