Introducing the new oval Direct Mount with OCP Mount. OCP Mount’s patent-pending, proprietary technology allows the oval Direct Mount to be adjusted in 1-degree increments for optimized pedaling biomechanics. 12.5% ovality heightens the performance advantages of oval chainrings; no other oval chainring in the growing oval chainring category offers the adjustment options plus unique ovality all aimed at improving pedaling performance.

DM ROUND RING 53/39 BLACK

FEATURES:
- BCD: NO
- QRING TYPE: Inner, Outer
- COMPATIBILITY: ALDHU
- DISCIPLINE: Road

TECHNOLOGIES:
- ALU 7075
Why we choose aluminum
7075 aeronautic-grade aluminum alloy offers superior physical properties with which to craft components like our signature Q-Rings, REX 3, and 3D24 cranks.

- ALU CNC
Manufactured with the latest technology
Computer Numerical Control (CNC) machining provides a precise and consistent manufacturing process. This is especially important when it comes to crafting bike components in order to ensure flawless functionality with respect to all the parts working together. Equipped with the latest CNC resources, ROTOR parts are precisely machined to within a hundredth of a millimeter.

-DIRECT MOUNT
The shape of the axle lets you position independently both cranks and spider or Direct Mount, and thereby change the relative orientation in order to adapt to the optimum orientation of each user.

-OCP MOUNT
ROTOR’s exclusive patented technology “OCP Mount” refers to the pedaling’s biomechanical optimization when you are using Q rings or other oval chainrings; this lets you adjust the orientation between chainrings and cranks by one step degree.
The shape of the axle lets you position independently both cranks and spider or Direct Mount, and thereby change the relative orientation in order to adapt to the optimum orientation of each user.
The multiple positions offered by “OCP Mount” technology let a fine adjustment of the OCP (Optimum Chainring Position), because so far you could position the Q rings in 5 exclusive OCP points, in 4 by 4 degrees, with a usual spider. In this way, with the OCP Mount technology, any oval chainring can benefit from an OCP with micro-adjustment to increase the performance of your pedaling and your knees health, or even to modulate the traction in MTB and Cyclo-cross.
Adjust perfectly your chainrings to your pedaling style with the ROTOR’s “OCP Mount”.