mycheng Bike Gear Shifter, 3x7 21 Speed Shifter Brake Lever Set for Mountain Bike, Road Bike, MTB,Bicycle

【Reliable Shifting and Braking Upgrade】 Choose the 3X7 bike gear shifter to enhance the shifting and braking performance of your bicycle, ensuring a smooth riding experience., 【High-Quality Material】- This 3x7 21-speed bike brake lever shifter is made of high-quality aluminum alloy, ensuring durability and lightweight. With a 3-speed control on the left and a 7-speed control on the right, it offers a total of 21 gears to choose from. Each shifter comes with cables for precise and consistent shifting performance., 【Easy Installation and Replacement】With this bicycle gear shifter brake set, you can simplify bike maintenance and easily replace old shifting mechanisms. Conveniently install and replace your bike's gear shifter brake system with ease., 【Exquisite Craftsmanship, Long-lasting Durability】7-speed bike gear shifter kit with clear gear indicator for easy and precise shifting.Durable construction ensures long-lasting performance, making your bike both stylish and reliable., 【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. Please ensure the brake lever shifter is suitable for your bike before making a purchase.