Offering pro-level features, the 11-speed compatible Tiagra rear derailleur gives high performance at a low price
Wide link design increases rigidity and service life
Advanced light action for low-friction shifting up or down the block
Alloy body's and outer link leads to lower weight without compromising strength and durability
Two fluorine-coated link pin bushings for low-friction performance
36 tooth max cassette with double chainset
Compatible with 11-speed chains, CSRS40011146 and ST-R4020/ ST-U6030 STI's only