HUB RR SRAM 900 24 QR/12mmTA XDR XDR BK 11-12s

Double Time four pawl internal mechanism ensures rapid lightning-fast engagement for quick and confident pedal responsiveness

Speedball bearings provide smooth, long-lasting rotation performance

3D forged and machined for low weight and high strength

Available with XD/XDR or 11s cassette drivers

Convertible QR/12mm axle - end caps included

24, 28 or 32 spoke holes