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Boost crank axles for the new R-Hawk and R-Raptor 1-fold cranksets with maximum modularity: Crank axle, crank arms and rubber bumper sets can be individually combined; perfectly complemented by a wide range of Direct Mount chainrings in the oval Q-ring variant or alternatively as round noQ-rings. The R-Hawk and R-Raptor cranks are compatible with almost all bottom bracket standards on the market and cover three different axle lengths. OPC Mount Rotor's patented technology of "OCP mounting" a Q-ring makes the difference: the individual adaptation of oval chainrings to the crank arm enables the biomechanical advantages of the system. The crank arm, spider and direct mount chainrings of the new Hawk and Raptor Enduro cranks can be adjusted independently thanks to Rotor's patented gearing. Each user can adjust his individual setup to the optimal position for him.
The different positions of the "OCP Mount" technology (Optimum Chainring Position) allow an individual adjustment of the Q-rings at up to 5 positions. This fine micro-adjustment is the secret for a very individual set up of oval chainrings to the needs of the rider. It’s thus possible to prevent or eliminate knee problems, optimise the effectiveness of the crank rotation or improve traction on the MTB and cyclocross. Position your chainrings with ROTOR's "OCP Mount" system for the most efficient ride. OCP is only available for the Rotor Q-rings.