The Shimano Tiagra 4700 10 Speed Rear Derailleur offers pro-level features, the 10-speed compatible Tiagra rear derailleur gives high performance at a low price.

Key Features:

• 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
• For double chainsets with 28 tooth max cassette
• Compatible with 4700 10-speed double road drive systems only