Mountain Bike Speed Transmission 7 21 24 Speed 11T High Reliability Stable Performance Cycling Accessory

Feature: 1. Rear positioning speed change, oblique scaler, reliable speed change, beautiful, long service life and low noise 2. Aluminum alloy material. Simple adjustment, compatible with 11T high speed teeth 3. High transmission efficiency, very practical. Good quality, durable, can be used for a long time, bring a lot of convenience 4. Wonderful accessory for mountain bike. Professional manufacturing, stable performance and high reliability 5. Ergonomic design is adopted, with simple design, easy installation and disassembly and convenient use Specification: Item Type: Mountain Bike Speed Transmission Model: TY300 TX35 Upgraded Transmission: Pull Back , Rear Transmission Material: Aluminum Alloy. Package List: 1 x Mountain Bike Speed Transmission