DESCRIPTION Rotor chainrings have been known for their high quality for many years. Now you can also install the flat aero chainrings from the Spanish manufacturer on your Shimano GRX cranks. The inner chainrings with 30teeth with an asymmetrical 80mm bolt circles
FEATURE Application: Gravel, cyclocross, racing bike Material: Aluminum 7075 T6 Technology: OCP system Bolt circle: 80mm Fastening: 4-arm spider (Shimano asymmetrical) Number of teeth: 30 (for large chainring with 46 teeth) Mounting: internal Compatibility cranks: Shimano GRX (except Power Meter) Compatibility chain: 10/11-speed Color: Black