This CUES SL-U4010 Rapidfire Plus 9-speed shift lever's refined shape and light operation provide riders with a comfortable, easy-to-use interface. ONLY compatible with CUES 9-Speed LINKGLIDE rear derailleurs. ONLY compatible with CUES 9-Speed LINKGLIDE rear derailleurs. Rapidfire Plus provides quick lever access and light operation. 2-Way Release adds the ability to activate a release shift by pushing with the thumb. Easily-visible gear position indicator option improves shifting control. 2050mm Optislick inner shift cable improves cable routing efficiency and provides excellent corrosion resistance. Clamp band mount type. Item Specifications: Color: Black, Rear Der/Shifter Compatibility: Mountain, Drivetrain Speeds: 9, Designed for ebike: Yes, Shifter Style: Trigger,