Shimano / Tiagra

Shimano Tiagra RD-R4000 Rear Derailleur - Shadow RD | 11-speed

Description

Shimano Tiagra RD-R4000 Rear Derailleur - Shadow RD | 11-speed

Tiagra R4000 – Pure Road Riding

Authentic road cycling, enhanced with a wider gear range and more accessible than ever before. That is the 2x11-speed drivetrain system of Shimano’s redesigned Tiagra series. The mechanical shifting components are designed with a focus on practicality and user-friendliness. While the ergonomic and comfortable shift levers form the heart of the groupset, the CS-RS400 cassette provides the foundation for a lightweight road configuration that still offers a sufficiently wide transmission ratio to handle mixed terrain as well as steep climbs.

Shimano Tiagra RD-R4000 rear derailleur

Thanks to its compact construction, the rear derailleur of the Tiagra R4000 series skillfully combines low weight with reliability. On the technical side, it offers not only smooth and precise shifting characteristics but also a wide gear range. The result is a complete package that delivers an exceptional riding experience on the road.

Shadow RD | With their sophisticated technology, Shimano Shadow RD rear derailleurs are especially intended for more aggressive riding style. Their super low profile design carries many benefits. Thanks to the low profile and a single tension construction, the derailleur does not hit the chain stay in rough riding conditions. The result is smooth and silent performance.


Technical details:

  • material: aluminum (painted), polyamide / glass-fiber-reinforced plastic (GFRP), stainless steel, steel
  • derailleur pulleys: 11 teeth, stainless steel
  • capacity: 41 teeth
  • smallest sprocket (min. / max.): 11 teeth
  • largest sprocket (min. / max.): 36 teeth

Compatibility:

  • shift lever: ST-R4020, ST-U6030
  • cassette: CS-RS400-11
  • chain: CN-HG901-11, CN-HG701-11, CN-HG601-11, CN-LG500

Scope of supply:

1 rear derailleur

Shimano Parts
Fact Sheet
Product Name: Shimano Tiagra RD-R4000 Rear Derailleur - Shadow RD | 11-speed
Manufacturer: Shimano Parts
Item Code: SHI773977
activity: Cycling
material: Aluminium
usage bikesport: Road Bike
Shifting System (Manufacturer): Shimano
Number of Gears - rear: 11
Shifting Type: Chain - Mechanical
Smallest Sprocket: 11
rear derailleur cage: medium
rear derailleur max. teeth: 36
rear derailleur capacity: 41
max. chainring spread teeth: 16
rear derailleur mounting: conventional
Model year: 2026
Color: Black
manufacturer item code: ERDR4000
Product Series: Shimano - Tiagra
GTINs: 4550170953065
Manufacturer page: http://www.shimano-europe.com/
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Manufacturer

Shimano

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