Or as low as For ultimate in single ring performance, throw the new Rotor QX1 oval mountain ring on your REX 1 cranks. You’ll be using the same chain ring set up that led Christoph Sauser to victory at the Cross Country Marathon World Championships.
The QX1 has an ovality of 12.5% to help the you accelerate better, feel less muscle fatigue and experience smoother torque and better grip off road.
The alternating think/thin tooth profile keeps your chain from dropping in even the worst conditions, eliminating the need for a chain guide.
It is compatible with Rotor Rex 1.1 and Rex 2.1, SRAM XX1 and Specialized cranks thanks to crank specific spiders from Rotor.
Available in 30T, 32T, 34T, 36T
