The new TIAGRA shifting platform gives virtually effortless and accurate shifting operation. This is an important feature, especially for unexperienced riders as they dont have to use much power to shift. TIAGRA 4700 runs on a 10-speed drivetrain operated by improved ergonomic shift/brake levers (STI). The slim and compact bracket grip offers easy reach to the brake/shift lever from the hood position and a comfortable lever feeling for a wide range of riders.Key Features:Offering pro-level features, the 10-speed compatible Tiagra rear derailleur gives high performance at a low priceWide link design increases rigidity and service lifeAdvanced light action for low-friction shifting up or down the blockAlloy body's and outer link leads to lower weight without compromising strength and durability11-tooth pulleys for reduced pulley wear and chain noiseTwo fluorine-coated link pin bushings for low-friction performance32 tooth max with triple, 34 tooth max with double chainsetCompatible with