Rotor says eccentric Q rings increase your cycling efficiency and power by extending time in the power portion of the pedal stroke and accelerating the legs through the dead spots. These rings are CNC machined in Spain, from 7075 aluminium, hard anodized in black. Eccentric Chain Ring 9/10 speed Black
Abbotsford Cycles has a limited supply of Rotor Products from 2009 to 2012, available at a significant discount to previous retail price.
These items are new in their original packaging.