Upgrade your road bike's front shifting with the Shimano Tiagra FD-R4000-B. This 11-speed double front derailleur uses Shimano's toggle-link construction to deliver lighter lever effort and a smooth, natural shift action across the chainrings.

Highlights

  • 11-speed double (2x) front derailleur
  • Toggle-link construction for lighter, smoother front shifting
  • Down-swing, band-type clamp mount
  • 31.8 mm band clamp, with 28.6 mm adapter included
  • Durable Tiagra-level build

Lighter front shifts

The toggle-link mechanism reduces the effort needed at the lever, making front shifts feel crisp and controlled even under load.

Compatibility & fit

Designed for Shimano Tiagra 4000-series 11-speed 2x road drivetrains. Band-type clamp fits a 31.8 mm seat tube, or 28.6 mm using the supplied adapter. Pairs with compatible Tiagra front shifters and double chainsets. Confirm your seat-tube diameter and drivetrain speed before fitting.

Covered by Shimano's manufacturer warranty against defects in materials and workmanship. For warranty support, please return the item to Tune Cycles and our team will assist you.

SKU SHM-IFDR4000BS
Barcode # 4550170227838
Brand Shimano