Rotor chainrings compatible with the Aldhu 3D cranks, but also compatible with 4-bolt Shimano cranks. When mounted to Rotor?s Aldhu 3D spider, these Q-Rings can be adjusted in 1-degree increments. When mounted to Shimano cranks, the chainrings are set to intermediate position OCP #3, which is the position most frequently used by road riders.
- Black anodized and laser etched aluminum