Shimano Sora RD-R3000 Rear Derailleur 9 Speed Black SSThe Shimano Sora RD-R3000 Rear Derailleur is compatible with 9 speed drivetrains. The minimum sprocket is 11T. The maximum front difference is 16T if you are using a short cage, or 20T if you use the medium cage. The total capacity for the short cage is 37T and for medium it goes up to 43T. Available in Black.689228678651
