Bike Derailleurs 3x7 21 Speed Switch MTB Bicycle Shifter Levers Brake with Shift Cable Cycling Disc Handle for Bike Trekking

Description:

Left hand handles three shift selector, and right hand handle seven shift shifter,easy to adjust speed.

Practice in use: the visual gear position display ensure the gear change is clear at a glance.

Speed governor: 21 speed mountain bike variable speed governor transmission one-piece brake.

Ergonomic design: 3x7 speed shift brake handle provides an ergonomically designed finger position and trigger-style handle.

Wide application: suitable for MTB,city car, recreational vehicle, road car, folding and so on.

Specification: 

Item type: Bicycle shifter brake

Color: Black

Material:  Aluminum Alloy

The inner diameter of the handle mounting holes: About 22.2mm

Applicable: MTB,city car,recreational vehicle,road car,folding