Discover the reliable performance and versatile design of Sunrace STM406 Trigger Shifters, engineered for city riding, E-Bikes, and mountain biking enthusiasts. Crafted from durable composite materials, these shifters deliver smooth, precise gear transitions across multiple drivetrain configurations. Available in a sleek black finish, the STM406 series is compatible with Shimano 7-speed and 3-speed drivetrains, making them ideal for a wide range of bicycles, including urban commuters, mountain bikers, and electric bikes. Featuring advanced technology for responsive shifting and ergonomic control, these trigger shifters enhance your riding experience with lightweight construction and rugged performance. Elevate your bikes shifting efficiency and style with the Sunrace STM406 seriesdesigned to meet the demands of diverse cycling adventures.