Shimano Tiagra RD-R4000 Rear Derailleur

The Shimano Tiagra RD-R4000 rear derailleur is a 11-speed rear derailleur for anyone replacing the rear derailleur on a bike with a double crankset. It has a medium cage and supports a maximum cassette sprocket of 36 teeth. The body and outer link are made from lightweight aluminium alloy, and the link bushings are fluorine-coated.

For compatibility, check your components before buying: the rear derailleur works with 11-speed chains and only with ST-R4020 or ST-U6030 STI shifters. The colour is black. If your bike has a double crankset and compatible STI shifters, this model suits your setup.

Founded in 1921 in Sakai, Japan, by Shozaburo Shimano, Shimano is still based in the same city today. For cyclists, it makes drivetrains, brakes, wheels, pedals and cycling shoes. Its history in bicycle components began with the production of freewheels in 1922.