Model: M390. 1x derailleur. Smooth/easy shifting performance. Wide linkage design for precise shifting and durability. Wide linkage design, dual servo structure, low-key concept. Speed: 9 speed. concave guide wheel screw.
9/27 Speed Rear Derailleur For Mountain Bike Shimano Acera RD-M390 MTB Gear
MTB Gear 9/27 Speed Rear Derailleur For Mountain Bike Shimano Acera RD-M390 M390
UK 9/27 Speed Rear Derailleur For Mountain Bike Acera RD-M390 M390 MTB Gear
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