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Mountain bike M4000 rear dial 9-speed 27-speed bicycle shadow rear dial transmission M430 upgrade version
1. New hidden design rear derailleur
2. Reduce the chance of damage to the lower fork after collision
3 reduce chain wear
4. The rear wheel is easy to install and the rear shifting wheel is stable.
5. Narrow profile non-slip design
Material: aluminum alloy
Model: M4000 shadow rear dial / T4000 rear dial
Level: 9 speed / 27
1*M4000 9S 27S bicycle transmission
1. All pictures are professionally color-coded, but due to the different ambient light and different display device settings, there may be some deviations between the pictures you see and the items themselves. Please understand.
2. The data is measured manually, there may be some deviation, but it does not affect the use.