Eturatas Shimano FC-MT500-2/B2 36T

Front chainring type: DoubleChainring 36T (BF for 36-26T)For 10-speed rear derailleurCOMPATIBLE MODEL: FC-M6000-2, FC-M6000-B2, FC-MT500-2, FC-MT500-B2 (may be compatible with other models with same BCD and speed group)Gear arms: 4B.C.D. (Bolt Circle Diameter): 96 mm