Chaoyang Bike Shift Levers Shifter 3x7 21 Speed with Gear Indicator and Brake Cable

Chaoyang Bicycle Brake Levers Shifter Speed Shifter 3x7 21 Speed with Gear Indicator and Brake Cable Feature: 3 x 7- speed compatibility Ergonomic shift/brake lever combination Noise-dampening bumper stopper Visible Optical Gear Display indicator to confirm the gear position with number at a glance Compatible with liner-pull, cantilever, roller, and mechanical disc brakes Speacification Material: Alloy Right Lever: 7 Speed Trigger Shifter Left Lever: 3 Speed Trigger Shifter Scope of application: 21-22.2mm diameter handle bar Aperture: 22.2mm Brake Lever Length: 4 Finger Pacakege Include: 1 Pair Bicycle Brake Levers Shifter