Features1Aluminum Material: Made from aluminum material, our shifter offers exceptional durability and reliability, ensuring long lasting performance. 2Seamless Control: With its integrated brake and shifter design, this handlebar control provides easy and quick operation, allowing you to switch gears effortlessly and apply brakes instantly. 3Accuracy Speed Adjustment: Fine tune your riding experience with the precise speed adjuster, enabling you to customize your speed based on your individual needs and riding conditions. 4Superior Comfort: Enhance your biking comfort with our gear shifter, which features ergonomic grip positions and intuitive controls, reducing hand fatigue and providing a more enjoyable ride. 5Versatile Compatibility: Designed for front 3 teeth, rear 8 flywheel, 24 speed positioning variable speed system, this all aluminum shifter ensures optimal performance and smooth gear shifting, catering to both recreational and professional riders.SpecificationItem Type:BicycleBrakeLeversShifterWeight: 550g/19.4ozMaterial: AluminumModel: 51-8, suitable for front 3 teeth, rear 8 flywheel, 24 speed positioning systemSuitable for: mountain bike, urban recreational bike, folding bike, straight road bikeDiameter: 22.2mm (21-23mm can be used)Package List2 x Shift Lever