3x7 Speed Shifter And Brake Lever Kit With Gear Indicator For Mountain Bike Road Bike MTB BMX Fixie Cycling, 21 Speed System, V Brake Cable Compatible, Built To Ride Durable Aluminum Construction
✔️ 21 speed setup with 3x7 control, robust aluminum body
This 3x7 speed shifter and brake lever kit gives a 21-speed drivetrain upgrade for mountain bikes, road bikes, BMX, and fixies. It includes a left triple crank shifter and a right 7-speed trigger shifter, built from durable aluminum for long-lasting performance and reliable braking compatibility. Pack size: single kit (two shifters).
✅ 3x7 speed system with left triple crank and right 7-speed shifters for 21 gears
✅ Optical gear display indicator shows current gear for precise shifting
✅ Trigger-type right shifter with down shifts and thumb up shifts
✅ Left shifter uses ratcheting thumb lever for smooth, confident shifts
✅ Durable aluminum alloy construction, compatible with V-brake cables
✅ Ergonomic design works with liner-pull, cantilever, roller, and mechanical disc brakes
💡 What is a bicycle gear shifter used for in a 3x7 setup? This handy device lets riders manage front and rear gearing to keep pedaling efficient on varied terrain. - Improve cadence and control on hills and flats - Syncs with brake systems for reliable stopping and shifting - Optical gear display helps verify gear selection quickly