RD-R4000 Tiagra 11-speed rear derailleur

Shimano RD-R4000 Tiagra 11-speed rear derailleur

Upgrade your drivetrain with the Shimano Tiagra 11-speed rear derailleur, designed to deliver reliable, high-performance shifting at an excellent value. Featuring a wide link design for increased rigidity and longer service life, it provides precise and dependable gear changes even under load. The advanced light-action mechanism reduces friction when shifting up or down the cassette, creating smoother, more responsive performance on every ride. A lightweight alloy body and outer link help reduce overall weight without sacrificing strength or durability, while two fluorine-coated link pin bushings further enhance low-friction operation. Designed for use with double chainsets and supporting up to a 36-tooth cassette, this rear derailleur is compatible with 11-speed chains, CS-RS400-11-46 cassettes, and ST-R4020 or ST-U6030 STI shifters, making it a dependable upgrade for riders seeking smooth, efficient shifting and long-lasting performance.