Crockery parts rotor sr DIN q50/34. Q Rings DM Oval Chainring 52/36T Black Introducing the new Oval Direct Mount with OCP Mount. Patented technology docp Rotor parts sr DIN q50/34. Q Rings DM Oval Chainring 52/36T Black Introducing the new Oval Direct Mount with OCP Mount. Patent-pending doCP Mount technology allows the Oval Direct Mount to be adjusted in 1-degree increments to optimize pedaling biomechanics. A 12.5% ovality increases the performance benefits of oval chainrings, no other oval chainring in the growing category of oval chainrings offers the adjustment options as well as a single ovality all aimed at improving pedaling performance. The bcd no q ring type: interior, exterior compatibility no discipline roadtechnologies:alu7075why we choose aluminum the aircraft-grade aluminum alloy 7075 offers superior physical properties that allow the manufacture of components such as our famous sleeves q rings, rex 3 and 3d24.alu cnc manufactured with the latest technology CNC machining provides an accurate and consistent manufacturing process. This is especially important when it comes to manufacturing bicycle components to ensure flawless functionality with respect to all parts working together. Equipped with the latest cnc resources, the rotor parts are precision machined to within a hundredth of a millimeter. Ocp mountThe exclusive patented rotor technology "ocp Mount" refers to the biomechanical optimization of pedaling when using q rings or other oval chainrings, this allows you to adjust the orientation between the chainrings and the cranks of a degree. The shape of the axle allows you to independently position the cranks and spider or direct mount, and thus change the relative orientation to suit the optimal orientation for each user. the multiple positions offered by the "ocp mount" technology allow precise adjustment of locp (optimal chaining position), because until now you could position the q rings in 5 exclusive points ocp, at 4 by 4 degrees, with a usual spider . In this way, with ocp mount technology, any oval chainring can benefit from an ocp with micro-adjustment to increase your pedaling performance and knee health, or even to modulate traction in mountain biking and cyclo cross.adjust perfectly match your chainrings to your riding style with the rotor's 'ocp mount'.