Model: MG-MG-BS-3X7S; 3 x 7 / 21 Speed Bike Twist Shifter with Handle Grips Set.

One-time Multi-gear Switch: Multi-gear switch can be completed through a simple wrist rotation action, without the need for per-gear operation, effectively reduce hand fatigue, suitable for long riding, the operation is flexible and simple, fits for kids and adult bike beginner.

Wide Application: Suitable for universal handlebar end with a diameter of 0.87inch (22.2mm), to meet the needs of various types of bikes, such as mountain bikes, kids bike, cruiser bike, commuting bike, tricycle etc.

High Adaptability: Smooth gear changing, strong compatibility, suitable for various models of rear derailleur, easy to install.

Enough Cable Length: The 3 speed shifter length is 180cm, and the 7 speed shhifter length is 210cm, which is longer than the normal shifters, ensuring sufficient length and good durability, and reducing maintenance frequency.

Package List: 3 speed left shifter x 1, 7 speed right shifter x 1, handlebar grip x 2. We provide excellent customer service, please feel free to contact us if you have any questions.