Shimano Tiagra 4700 10sp Rear Derailleur

Offering pro-level features, the 10-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
11-tooth pulleys for reduced pulley wear and chain noise
Two fluorine-coated link pin bushings for low-friction performance
Compatible with 10-speed road drive systems