Model 30T or 32T or 34T or 36T or 38T or 40T or 42T or 44T or 46T or 48T or 52T or 56T Chainring shape Round Offset, mm 2 (30T), 0 (32T-48T, 52T, 56T) Made from 7075-T651 Aluminum Alloy Surface coatingSAnodizing Made with CNC milling Compatible cranksets 104 BCD Weight, grams 31 (30T), 36 (32T), 44 (34T), 53 (36T), 56 (38T), 60 (40T), 63 (42T), 65 (44T), 71 (46T) 85 (48T) Chain compatibility 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