Optimal Performance: Long cage design accommodates up to 34T cassette - Total Capacity 43T, pulley/Teeth 13/13T.
Built to Last: High-Quality Aluminum Alloy Construction with Hollow Weight-Reduction Design. Nylon wear-resistant aluminum alloy guide wheel for silent, smooth, and non-wearing chain.
Smooth and Effortless Shifting: SIS Index Technology and Double Servo-Panta Mechanism(Enables the rear derailleur to move in an optimum path)for Stress-Free Riding
Precise and Reliable: Compatible with 6 and 7-speed SIS INDEX transmission systems. Optimized guide pulley ensures precise shifting for accurate SIS performance. Suitable for Mountain, Road, and Touring Bikes.
Easy Installation and Maintenance: Direct Mounting Design for Fast and Convenient Setup.It can be adjusted slightly in multiple places to ensure accurate speed change performance.