SHIMANO 110BCD R9100 R8000 R7000 2X Completely closed Round Road bike Gravel bike 11-12S

Model  48-35T or 50-34T or 52-36T or 53-39T or 54-40T or 56-42T Colour Black Made from 7075-T651 Aluminum Alloy Surface coating Anodizing Made with CNC milling Chainring shape Round Compatible cranksets Shimano FC-R8000 - ULTEGRShimano FC-R7000 - SHIMANO 105 CRANKShimano FC-R9100 - Dura-Ace Weight, grams  162 (48-35T), 170 (50-34T), 190 (52-36T), 207 (53-39T), 233(50-40T), 242 (56-42T) Chain compatibility Standard 11/12 speed  Support paying an extra $10 to customize the same silver color  Bicycle shop or dealer contact customer service               PASS QUEST 2X CHAINRING The chainring is made of a whole aluminum plate by CNC milling, which is thinned and chamfered toensure strength while reducing the weight by morethan 10g compared with the previous series. The POdouble-speed gearbox has smooth speed changes,effortless climbing, strong sprinting, outstandingcompetitive advantages, and is suitable for variousroad