microSHIFT ADVENT RD-M619M-B Rear Derailleur - 9-Speed Medium Cage Black MFPN=44020081 spindle CrMo size 9/16" color Model-Ambix Platform+Clipless Pedal

microSHIFT ADVENT RD M619M B Rear Derailleur 9 Speed Medium Cage Black MFPN=44020081 spindle CrMo size 9 16" color Model Ambix Platform+Clipless Pedal spindle CrMo size 9 16" color purple weight 416g Features specially shaped slots to hold spoke wrenches as well as parts trays for spoke nipples and other small components Rear Der Shifter Compatibility microSHIFT ADVENT Rear Derailleur Mount Type 10x1 Standard Drivetrain Speeds 9 Chain Wrap Capacity (teeth) 37 Cage Length Medium Color Black The derailleur kinematics are also precisely tuned to use a more direct cable path making the shifting response consistent across all gears