Integrated Design: This set features an integrated brake lever and gear changer combination, providing a streamlined and efficient control system for your bike parts, simplifying your cockpit and improving ergonomics.Precise Change Gears Ing: Experience effortless and reliable gear changes with this 3x7 speed bike groupset, designed for consistent performance across all 21 gears, whether you're climbing hills or accelerating on flat street s.Clear Gear Display: The intuitive optical gear display allows you to see your current gear selection at a glance, helping you make timely change gears s and maintain optimal pedaling pedaling rhythm with this sophisticated gear gear change gears ystem.Long-Lasting Construction: Made from a tough alloy material, these drivetrain comp integrated nts are built to withstand the rigors of frequent commuting and trail riding, ensuring long-lasting durability and performance.Complete Set: This 21-gear bike derailleur set includes both the left (3-speed) and right (7-speed) gear changer s, along with the necessary derailleur wire s, making it a comprehensive solution for upgrading or repairing your bike.
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