Model 32T or 34T or 36T or 38T or 40T or 42T or 44T or 46T or 48T Chainring shape Oval Offset, mm 2.5 (32T), 0 (34T-48T) Made from 7075-T651 Aluminum Alloy Surface coating Anodizing Made with CNC milling Ovality 12% Timing 108° after TDC (top dead center) Compatible cranksets 104 BCD Weight, grams 44 (32T), 46 (34T), 51 (36T), 58 (38T), 65 (40T), 70 (42T), 74 (44T), 79 (46T) Chain compatibility Compatible with all 9,10,11-speed chains, 12-speed SRAM Eagle and T-Type, KMC, Shimano HG+ chains. Color Black or Blue or Gold or Green or Orange or Red or Silver or Violet