Race Frace designedTheir Race Rings for optimal performance featuring Race Faces patented S.H.I.F.T.Technology, optimizing shifting performance by maximizingThe chainTo ring surface contact areas.The Race rings have been machine sculpted for maximum weight savings. CNC machined in British Columbia, Canada atThe Race Face manufacturing facility Outer, middle and aluminum inner rings manufactured from 7075-T6, one ofThe strongest alloys availableToday Outer rings are made from 4mmThick mat
