3x7 Speed Bike Shifter Brake Levers Combo, 21-Speed Integrated Bicycle Gear Shifter Set with Visual Gear Indicator & Stainless Steel Shift Cables, Replacement Parts for Mountain Bike, Road Bike, MTB

🚲 【PERFECT 3x7 SPEED UPGRADE】 Specifically engineered for 21-speed drivetrains, this integrated set features a 3-speed left lever and a 7-speed right lever. It’s the ultimate "all-in-one" replacement for mountain bikes (MTB), hybrids, and road bikes. Restore your bike’s performance with precise shifting and responsive braking in one seamless combo.

👌【ERGONOMIC EZ-FIRE PLUS DESIGN】 Say goodbye to hand fatigue! Our humanized trigger-style handle utilizes EZ-FIRE PLUS technology, allowing you to upshift and downshift effortlessly using just your thumb and index finger. The smooth, tactile feedback ensures a comfortable grip for long-distance trail riding or daily urban commuting.

📊 【CRYSTAL CLEAR VISUAL INDICATOR】 Stop looking down at your chain! The built-in, high-definition visual gear display lets you confirm your gear position at a single glance. This real-time feedback helps riders maintain the perfect cadence, making it an ideal choice for beginners and pros alike to optimize their riding efficiency.

🛠️ 【UNIVERSAL FIT & READY TO INSTALL】 Standardized to fit 22.2mm (7/8") handlebars, compatible with almost all major bike brands. Each set comes pre-equipped with premium stainless steel shifter cables, saving you the hassle of extra shopping. Whether you're a DIY enthusiast or a bike shop pro, the setup is quick and straightforward.

💪 【DURABLE METAL & COMPOSITE BUILD】 Engineered for rugged environments, the high-strength aluminum alloy levers provide powerful braking force, while the reinforced resin body ensures lightweight durability. Compatible with V-brake and mechanical disc brake systems, offering reliable stopping power in both wet and dry conditions.