Model 34T or 36T or 38T or 40T or 42T or 44T or 46T or 48T or 50T Chainring shape Round Offset, mm 8.2 (34T), 7.7 (36T), 6.5 (38T-42T), 5.7 (44T), 4.5 (46T-48T), 4.2 (50T) Made from 7075-T651 Aluminum Alloy Surface coating Anodizing Made with CNC milling Compatible cranksets Easton EA90, EC90 SL Weight, grams 81 (34T), 80 (36T), 88 (38T), 101 (40T), 105 (42T), 115 (44T), 116 (46T), 123 (48T), 129 (50T) 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