Shimano Cues RD-U4020-SGS - ERDU4020SGS - 2x9-speed Shadow rear derailleur, SGS cage, compatible with Linkglide and e-bikes

Shimano Cues RD-U4020-SGS 9-speed Shadow rear derailleur

The Shimano Cues RD-U4020-SGS rear derailleur is designed for Shimano Cues 2x9-speed drivetrains. With its Shadow direct mount, SGS cage, and compact design, it offers stable performance on trails, gravel paths, and urban commutes.

Designed for everyday use and tested for electric bikes, the Shimano Cues RD-U4020-SGS - ERDU4020SGS rear derailleur ensures smooth and decisive rear gear changes, whether riding in the city, on the road, on paths or through the countryside.

Its compact design protects the rear derailleur from obstructions in a wide variety of situations. With a total capacity of 41 teeth and compatibility with a 36-tooth cog in a 2x9-speed setup, this model is suitable for all-rounders, hybrid bikes, city bikes, e-bikes, and trekking bikes equipped with a compatible Shimano Cues drivetrain.

Design

Shadow direct attachment

The Shimano Cues RD-U4020-SGS derailleur uses a direct mount with Shadow design, in order to offer a more compact profile and better protection against obstacles.

Compact profile

The compact design protects the rear derailleur in a wide variety of situations, whether on trails, gravel paths, or city streets.

SGS screed

The SGS cage allows for the management of a 2x9 speed transmission compatible with a total capacity of 41 teeth.

11-tooth rollers

The derailleur is equipped with 11/11 tooth pulleys, suitable for the operation of compatible Shimano Cues 9 speed transmissions.

Integrated cable adjuster

The cable adjuster allows for precise adjustment of cable tension to optimize gear shifting after installation.

Color series finish

The series color finish allows for consistent integration with the components of the Shimano Cues range.

Performance

Smooth gear changes

The RD-U4020-SGS allows for smooth and decisive rear gear changes, suitable for everyday use.

Stable transmission

This derailleur offers stable performance on trails, gravel roads and city streets, to accompany regular commutes as well as longer rides.

Protection against obstacles

Thanks to its compact Shadow design, the rear derailleur is better protected against obstacles and potential impacts on varied terrain.

Large sprocket up to 36 teeth

The derailleur accepts a large 36-tooth sprocket, notably in a compatible 2x9 speed configuration.

Total capacity of 41 teeth

With a total capacity of 41 teeth, this model allows for efficient management of tooth spacing on compatible double chainring transmissions.

Designed for electric bikes

The derailleur is designed and tested to offer durable performance in electric bikes, as part of a compatible Shimano drivetrain.

Compatibility

2x9 speed transmission

The Shimano Cues RD-U4020-SGS derailleur is designed for Shimano 9-speed double chainring rear drivetrains.

LINKGLIDE compatibility

This model is compatible with LINKGLIDE transmissions, designed to offer good durability and reliable gear shifting over time.

Compatible chain

The derailleur is compatible with LINKGLIDE and HG 11-speed chains.

Compatible sprockets

The derailleur accepts an 11-tooth top sprocket and a 36-tooth large sprocket, depending on the drivetrain configuration.

Direct Shadow Edit

This model is designed for direct Shadow mounting installation on a compatible frame.

Technical specifications

• Brand: Shimano
• Range: Cues
• Model: RD-U4020-SGS
• Shimano part number: ERDU4020SGS
• EAN code: 4550170172039
• UPC Code: 192790172033
• Product family: rear derailleur
• Reverse speeds: 9 speeds
• Configuration: double chainring 2x9 speeds
• Type: Shadow direct mount
• Screed: SGS
• Color: color series
• Packaging: individual packaging
• Compatible chain: LINKGLIDE / HG 11-speed
• Roller: 11 / 11 teeth
• Cable adjuster: yes
• Minimum upper sprocket: 11 teeth
• Maximum upper sprocket: 11 teeth
• Large sprocket min.: 36 teeth
• Maximum sprocket size: 36 teeth
• Maximum front difference: 16 teeth
• Total capacity: 41 teeth
• Design: Shadow
• Specificity: designed for electric bikes

Recommended use

• Replacing a Shimano Cues 9-speed rear derailleur
• Compatible Shimano Cues drivetrain
• LINKGLIDE compatible transmission
• Dual chainring assembly, 2x9 speeds
• compatible electric bike
• VTC
• Urban bike
• Trekking bike
• Recreational mountain biking
• Gravel paths
• Trails and daily routes
• Assembly with large 36-tooth sprocket

Why choose the Shimano Cues RD-U4020-SGS rear derailleur?

• Shimano Cues 9-speed rear derailleur
• Designed for 2x9 speed double chainring drivetrains
• Shadow design with a compact profile
• SGS screed
• LINKGLIDE compatible
• Compatible with LINKGLIDE and HG 11-speed chains
• Smooth and decisive gear changes
• Stable performance on trails, gravel roads and urban routes
• Large sprocket compatible up to 36 teeth
• Total capacity of 41 teeth
• Integrated cable adjuster
• Designed and tested for electric bikes
• Suitable for everyday and versatile use
• Genuine Shimano product
• Reference ERDU4020SGS