SRAM ROTOR 160mm CENTRELINE 2P CENTRELOCK ROUNDED   Material: [center] aluminum, [brake track] steel Attachment Type: centerlock Diameter: 140, 160, 180mm Claimed Weight: [140mm] 86g, [160mm] 102g, [180mm] 125g Recommended Use: commuting, cross-country, cyclocross, enduro, gravel, mud/sand/snow, road cycling, time trial, trail, triathlon