microSHIFT Estes 1x Rear Derailleur - 7/8/9-Speed Medium Cage 40-45t Max Cog 11-12t Min Cog 33t Capacity BLK

For riders that want worry free shifting Estes delivers. With robust wide-set pivots a more rigid body and cage and high quality metric adjustment hardware microSHIFT Estes rear derailleurs perform well above expectations.