Shimano / Tiagra

Shimano Tiagra FD-R4000 Front Derailleur - Down Swing | 2x11-speed - Clamp 31.8 (BS)

Description

Shimano Tiagra FD-R4000 Front Derailleur - Down Swing | 2x11-speed - Clamp 31.8 (BS)

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 FD-R4000 front derailleur

Smooth and effortless gear changes characterize the front derailleur of the Tiagra R4000 series. Thanks to the optimized cage design of the Shimano Toggle Link construction, the Down Swing front derailleur ensures natural as well as harmonious on-demand shifting performance that meets the demands of modern road cycling.

The 2x11-speed front derailleur is available with different clamp diameters (FD-R4000-BS: 31.8 mm / FD-R4000-BL: 34.9 mm) as well as in a braze-on version (FD-R4000-F).

Down Swing | Front derailleurs with the Down Swing design are characterized by their durability and high shifting precision. The cage for chain guidance is located below the front derailleur mount.


Technical details:

  • base, bracket: aluminum (painted)
  • chain guide: steel (chrome-plated)
  • outer link: glass-fiber-reinforced plastic (GFRP, painted)
  • inner link: steel (plated)
  • construction: Down Swing
  • cable routing: Down Pull
  • chainring size (outside): 50–52 teeth
  • capacity: 16 teeth
  • chain line: 43.5 mm
  • chainstay angle: 61–66°

Compatibility:

  • shift lever: ST-R4020, ST-U6030
  • crank: FC-R4000
  • chain: CN-HG901-11, CN-HG701-11, CN-HG601-11, CN-LG500
Shimano Parts
Fact Sheet
Product Name: Shimano Tiagra FD-R4000 Front Derailleur - Down Swing | 2x11-speed - Clamp 31.8 (BS)
Manufacturer: Shimano Parts
Item Code: SHI773944
activity: Cycling
usage bikesport: Road Bike
Shifting System (Manufacturer): Shimano
Number of gears - front: 2
Number of Gears - rear: 11
Shifting Type: Chain - Mechanical
Front Derailleur Version: Clamp 31,8mm
chain line: 43.5mm
front derailleur max. teeth: 52
cable pull: Down Pull
front derailleur capacity: 16
chain stay angle: 61-66°
Model year: 2026
manufacturer item code: IFDR4000BS
Product Series: Shimano - Tiagra
GTINs: 4550170227838
Manufacturer page: http://www.shimano-europe.com/
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Manufacturer

Shimano

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