Rotor noQ Chainring (Outer)If it’s not broke then don’t fix it seems to be Rotor’s thoughts with the noQ Chainring that keeps the traditional round shape that has been proven time, and time again to be the most effective. Made with CNC machined aluminium for a hardy, robust design.FeaturesWill work with 9, 10 and 11 speed group setsOuter ring fitting 110/130 BCDMade from CNC machined aluminium0% ovalityBuy Rotor Components from Chain Reaction Cycles, the World's Largest Online Bike Store.