Shimano Alivio RD-M4000-SGS Rear Derailleur - 9 Speed, Long Cage, Gray
Simply Cycle

Shimano Alivio RD-M4000-SGS Rear Derailleur - 9 Speed, Long Cage, Gray

Regular price $55.00 $0.00

Shimano Alivio RD-M4000 Rear Derailleurs

  • Low profile "Shadow" design reduces exposure to crash damage
  • Resin plate body and carbon fiber reinforced plastic outer link for reduced weight