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Shimano Alivio M4000 Shadow Rear Derailleur

Great value Alivio rear derailleur offering crisp performance on- and off-road for 9-speed drivetrains.

Shadow design with smooth skid plate surface features a super low profile design that reduces the risk of damage from trail side hazards.

Specification
  • Wide link design increases rigidity and service life
  • Alloy body and outer link leads to lower weight without compromising strength and durability
  • 11-tooth pulleys for reduced pulley wear and chain noise
  • Advanced light action design with low friction fluorine coated link pivot bushings
  • For use with 32 to 36 tooth low rear sprockets, total capacity 45 teeth
  • Top-normal swing design
  • Compatible with 9-speed Hyperglide sprockets