Scope of application: 21-22.2mm diameter handle bar
Compatible for: Front 3 gear, Rear 7 flywheel and 21 speed positioning transmission system
Aperture: 22.2mm
Material: Alloy
Color: Black
Left Lever: 3 Speed Trigger Shifter
Right Lever: 7 Speed Trigger Shifter
3 speed left brake lever, 7speed right brake lever, totally 21 speed for optional.
Product Features:
21-speed transmission,ergonomic design of position and trigger handle.
Make wider gear display vision, just take a glance at speed changes.
Easier operation, lower division.
Pacakege Include:
1 Pair Bicycle Brake Levers Shifter
Please ensure the brake lever shifter is suitable for your bike before

Optical Gear Display Indicator: All shifter come with wires, with noise-dampening bumper stopper, offering precise and consistent shifting performance. Designed with optical gear display indicator to show you the gear position
Trigger Type Handle : 21 Speed bicycle shifter lever with handle grips set. Compatible for: left gear shifter for 3 speed and only right shifter for 7 speed and both left and right shifter for 3x7 speed.
Easy to Operate : Requires minimal finger pressure to activate. Allows smooth up/down gear changes without removing hands from handlebars.
High-Quality Material: This thumb gear shifter is crafted from durable aluminum alloy, delivering optimum performance, maximum safety, and long-lasting durability.
Wide Range of Applications : Compatible with bike handlebars with a diameter of 21-23mm, this bike gear shifter is an ideal accessory for mountain bikes, road bikes, folding bikes, Bicycle repair shop and more.