SRAM RIVAL 107BCD (4-bolt) Oval AERO Narrow Wide Chainring

Model 32T or 44T or 46T or 48T or 50T or 52T or 54T or 56T or 58T Colour Black Made from 7075-T651 Aluminum Alloy Surface coating Anodizing Made with CNC milling Chainring shape Oval Compatible cranksets 107 BCD (4-bolt)  SRAM RIVAL Weight, grams 91g (42T), 104g (44T), 112g (46T),120g  (48T), 136g (50T), 145g (52T),162g (54T),178g (56T),197g (58T) Chain compatibility Standard 9/10/11/12 speed is available, sram axs    Support paying an extra $10 to customize the same silver color  Bicycle shop or dealer contact customer service                      OVAL CHAINRING ADVANTAGES Multiple muscles are responsible for the balanced output More stable Give full play to the strength better and steadily It is more convenient to shake the bicycle Suitable for long distance, more effective to maintain their physical fitness