What this kit includes 1 x 3-speed gear and brake lever (left) 1 x 7-speed gear and brake lever (right) 2 x brake cables (left and right) 2 x shift cables (left and right) Why you need it Combines brake and shift into a single, stable unit for simpler, more reliable control. Clear visual gear indicators make it easy to see current gear at a glance, reducing mis-shifts. Durable, waterproof and rust-resistant construction extends service life and works in wet conditions. Key features Combined brake + shifter design: integral construction for stable feel and straightforward operation. Visual gear indicator: 3-speed marking on the left lever, 7-speed marking on the right lever for quick gear checks. Materials: aluminium alloy plus high-quality plastics for a balance of light weight and durability; designed to resist water and rust. Cable connections: shift cable attaches to the black cap, brake cable to the silver cap for correct, foolproof hookup. Left/right assignment: 3-speed lever installs on the left; 7-speed lever installs on the right. Cable length guidance: front brake and shift cables are shorter and connect to the 3-speed (left) lever; rear brake and shift cables are longer and connect to the 7-speed (right) lever. Compatibility and important purchase note Intended for 3 x 7 (21-speed) drivetrains. Compatibility note from the manufacturer: this product (3 x 7 21 speed) is suitable for bicycles with 3 cranksets and 8 cassettes. 1 piece or 2 pieces cranksets are not suitable. 7 cassettes are also not suitable. Please check whether your bike is suitable before you buy. Suitable bike types: MTB, city bikes, road bikes, folding bikes. Not compatible with electric bikes (NO EBIKE). Installation tips Mount the 3-speed lever on the left, the 7-speed lever on the right. Connect the shift cable to the black cap and the brake cable to the silver cap to ensure correct function. Verify cable lengths: shorter cables for front (left) connections, longer cables for rear (right) connections. Practical use scenarios Weekend mountain rides: Replace worn or damaged levers with this combined set to restore reliable braking and shifting and keep your ride responsive on trails. Commuting in mixed weather: Waterproof, rust-resistant materials help maintain performance through rain and road spray for daily city or folding-bike use. Budget drivetrain refresh: Update an older 3x7 bike with clear visual indicators and new cables to improve shifting accuracy and overall control without replacing the entire drivetrain. What you get A complete left/right combined brake and shifter set with cables and clear installation guidance, built for durable everyday use on compatible 3x7 bicycles.