QO ROCKS Crank Arms & Spindle are built for the rigors of real trail riding. Engineered with KevTex™ and precision-formed MaxStrength™ Slots, these cranks deliver a powerful balance of stiffness, impact resistance, and trail-tuned compliance.

Designed for aggressive riders and rugged terrain, the crank arms are paired with a lightweight 28.99mm spindle (CNC alloy, DUB compatible) for maximum durability and power transfer. Whether you're grinding up rocky climbs or hammering through descents, QO ROCKS delivers confidence without compromise.

Features:
– KevTex™ kevlar reinforcement for superior impact resistance
– MaxStrength™ Slots for trail-tuned flex and fatigue control
– CNC-machined 28.99mm alloy spindle (DUB compatible)
– Compatible with QO ROCKS DM chainrings (DIN5480 45x1)
– Available in 165, 170, and 175mm lengths

Tech Specs:
– System weight: 376g (170mm arms + spindle)
– Carbon finish with holographic QO accents
– DIN5480 45x1 direct mount interface (same interface used by Rotor® cranks)
– Q-Factor: 174mm

KevTex™ tough. Trail proven. Built for real MTB and Cyclocross riders. 100% QO.