Shimano Deore RD-M591 9-speed Rear Derailleur

Shimano's Deore RD-M591 rear derailleur ensures precise gear changes

The Shimano Deore RD-M591 9-speed rear derailleur has saved 15 grams compared to its predecessor. With its pantograph double servo mechanism, it ensures precise and smooth shifting on and off road. The outer and inner derailleur cages are made of steel.

Specifications:

Series: Deore M590
Application: All Mountain, Cross Country
Gearing: 9-speed
Attachment: standard
Capacity: 45-tooth
Compatibility: Shimano MTB / City & Touring 9-speed
Compatibility - Chains: HG 9-speed

Technical Information:

Derailleur Pulleys: 11-tooth
Outer Cage Material: steel
Inner Cage Material: steel
Other Materials: aluminium, stainless steel, steel

Compatibility:

Shifter: SL-M590, SL-M4000, SL-M3100, SL-M3000, SL-M2010-9R, SL-M2000, SL-M370, ST-M4050, ST-M3050, ST-M4000, ST-T4000, ST-T3000, ST-M370, ST-EF65, ST-EF510, ST-EF505
Cassette:
- 11-32 T / 11-34 T: CS-HG400-9, CS-HG300-9, CS-HG201-9, CS-HG200-9
- 11-28 T: CS-HG400-9
Chain: CN-HG93, CN-HG53

Features:

- precise and easy gear changes
- pantograph double servo
- 15 g lighter than the previous model M531
- universal design (on-/off-road)
- 3 fluorine-coated joint bushes
- painted cage plates

Technology:

Double Servo
Shimano's Pantograph double servo mechanism keeps the rear derailleur moving in an optimal path. The guide pulley tracks the sprockets as they move forwards and backwards at a very small distance, optimising every shift. The perfect tracking contributes to the extremely precise SIS shifting operations.

Models:

long:
Cage Length: SGS
Max. Largest Sprocket Teeth: 34-tooth
Min. Largest Sprocket Teeth: 28-tooth
Max. Smallest Sprocket Teeth: 12-tooth
Min. Smallest Sprocket Teeth: 11-tooth
Max. Chainring Difference: 22-tooth
Total Capacity: 45-tooth
Manufacturer Numbers: I-RDM591SGSL (black), I-RDM591SGSS (silver)

Contents:

- 1 x Shimano Deore RD-M591-SGS rear derailleur