• 【Material】It is made with High-strength ultra-light aluminum alloy that is durable, impact resistant and preservative.
• 【Design】There is Nylon silent gear to reduce chain wear and ergonomic grip shape makes your operation easier.
• 【Function】It is Lightweight operation, accurate and sensitive speed change performance that will make you ride faster.
• 【Fitment】 It is suitable for all general bikes, includes mountain bikes, road bikes and variable speed bicycles.
• 【Install】You can quickly and easily assemble. Using an Allen key type internal cable fixing bolt to install your bike.

FEATURE:

1. concave guide wheel screw
2. Smooth/easy operation shifting performance
3. Wide connection design for precise shifting and durability
4. Wide connection design, dual servo structure, low-key concept.
5. A variety of specifications to choose from

SPECIFICATION:

Product Name: RD-M390 Transmission
Material: aluminum alloy
Weight: 500g
Model: RD-M390
Speed: 9 speed / 27 speed
Colour: Black
Suitable for a variety of tooth change range (28-34T)
Recommended models: commuter mountain bike / folding model

PACKAGE:
1*RD-M390 transmission