TRP RD-M9070 EVO7 Rear Derailleur - 7-Speed Short Cage 26t Max Clutched BLK/SilverTRP RD M9070 EVO7 Rear Derailleur 7 Speed Short Cage 24t Max Clutched Black Silver. The TRP EVO RD M9070 is a high performing 7 speed rear derailleur designed for DH use that features an Integrated Hall Lock Lever Horizontal Parallelogram stabilizer and Instant Silent Clutch. Integrated Hall Lock Lever stabilizes the rear derailleur to eliminate drivetrain noise Intergrated Hall Lock Lever offers an On Off feature for easy wheel removal and features