Our Race Rings have been designed for optimal performance. Featuring our patented S.H.I.F.T. technology, we have optimized shifting performance by maximizing the chain to ring surface contact areas. The Race rings have been machine sculpted for maximum weight savings. FEATURES CNC machined from 7075-T6, one of the strongest alloys available today. Outer rings are made from 4mm thick material & inner ring from 5mm thick material for unsurpassed durability. Rings feature our patented S.H.I.F.T. technology, featuring hardwearing steel S.H.I.F.T. chips for dual action up-shifts. CNC machined in Canada from tough 7075-T6 alloy. Thick and durable with patented S.H.I.F.T. technology. Built for: XC / AM. Colours: Black or Silver.