Bike Gear Shifter 3 x 7 21 Speed Bicycle Brake Levers with Gear Indicator and Left Right Brake Lever Shifter Set with Grips(Pair) for Road Bike, Moutain Bike,Cycling

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.