[Easy Upgrade] Transform your existing 7, 8, or 9-speed bike into a 10-speed with this comprehensive package.
[High-speed Performance] 10 Speed is essential for mountain bikes, with a lightweight and wide gear ratio design.
[Comprehensive Package] Includes shifter, 42T flywheel, accessories, 36T disc, chain, chain link head, tail hook, screw, and other essential components for a complete upgrade.
[ Shifting] A7 Gear Lever features 1:1 technology for quick and accurate gear changes, with ultra-low friction coating for smooth .
[Enhanced Control] A7 Rear Derailleur reduces chain jitter, suitable for a sprocket up to 50T, with a bevel design and large bearing pulley.