SHIMANO 110BCD R9200 R8100 R7100 AERO Round Narrow Wide Chainring

Model 36T or 38T or 40T or 42T or  44T or 46T or 48T or 50T or 52T or 54T or 56T or 58T or 60T Colour Black or Silver Made from 7075-T651 Aluminum Alloy Surface coating Anodizing Made with CNC milling Chainring shape Round Compatible cranksets Shimano FC-R8100 - ULTEGRShimano FC-R7100 - SHIMANO 105 CRANKShimano FC-R9200 - Dura-Ace Weight, grams  97 (44T),108 (46T), 119 (48T), 137 (50T), 152 (52T), 166 (54T), 186 (56T), 203 (58T), 218 (60T) Chain compatibility Standard 9-12 speed Bicycle shop or dealer contact customer service              PASS QUEST NARROW WIDE CHAINRING R110BCD is made ofa whole aluminum plate by CNC millingThe back is hollowed out and chamfered to ensure strengthwhile reducing the weight of the chainring. The chainringadopts an extended tooth shape, so even if the chain jumpsviolently, it is difficult to get out of the teeth,so as to prevent the chain from falling off. (BCD:THE CENTER HOLE OF T