M390 9 speed Rear Derailleurs for Bike Accessory Mountain Bicycle Parts for 3x9S 27S Speed New,Default NO5247

Features:

1. Stable Shifting Performance.

2. Made of high-quality Aluminum alloy materials, durable and long service life.

3. Easy to install and disassemble.

4. Suitable for mountain bike, road bikes, variable speed bicycle, folding and city bikes.

5. Precise chain movement changes gears smoothly. 

Notice:

1.Actual color may be slightly different from the image due to different monitor and light effect

2.Please allow 1-3cm deviation due to manual measurement

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