Tag: RDM390
BessieSparks – RD-M390 Acera Rear Derailleur, 7 8 9 Speed MTB Bike Bicycle Derailleur
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.
