Model 40T or 42T or 44T or 46T or 48T or 50T or 52T or 54T Chainring shape Oval Offset, mm 6.5 (40T-42T), 5.7 (44T), 4.6 (46T), 3.6 (48T), 2.5 (50T), 1.5 (52T), 2.5 (54T) Made from 7075-T651 Aluminum Alloy Surface coating Anodizing Made with CNC milling Ovality 12% Timing 108° after TDC (top dead center) Compatible cranksets SRAM Force 1, Force 22, Rival 1, Rival 22, S-952, S-902. Cane Creek eeWings All-Road Weight, grams 100 (40T), 109 (42T), 118 (44T), 125 (46T), 137 (48T), 144 (50T), 153 (52T), 165 (54T) Chain compatibility 10/11/12-speed chains : including Shimano HG+ and SRAM AXS flattop (incl. T-type) chains Color Black or Blue or Gold or Green or Orange or Red or Silver or Violet