In addition to biomechanical performance, there was one more important factor when designing the Q rings: compatibility. New Direct Mount Q rings allow you to upgrade your Shimano 12 speed crankset to go oval. The simplified one-piece Direct Mount design saves weight compared to traditional spider mounted rings.
Number of Holes: Direct mount
Compatibility: Shimano XTR 9100, 9120
Front derailleurs: 1-speed Rear shifters: 12-speed