Model 42T or 44T or 46T or 48T or 50T or 52T or 54T or 56T or 58T Offset, mm 0 (42T-58T) Made from 7075-T651 Aluminum Alloy Made with CNC milling Ovality 12% Timing 108° after TDC (top dead center) Compatible cranksets 110 BCD (5-bolt) Weight, grams 73 (42T), 84 (44T), 93 (46T) 110 (48T) 122 (50T) 135 (52T) 146 (54T) 158 (56T) 174 (58T) 186 (60T) 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