Shimano XTR-compatible Q-Rings. You??¢ve been brand-loyal since you first swung your leg over a bike. There??¢s no need to swap out your Shimano XTR 9000 cranks to accommodate our QX rings, ROTOR has crafted QX1??¢s just for you. QX1 rings offer 3 Optimum chainring Positions (OCP), which can be dialed in to take advantage of the most-powerful part of your pedal stroke to give you faster acceleration and better traction when you need it most. Available in BCD 96.