Product Name: Shimano Tiagra RD-4700-GS Rear Derailleur 10-speed medium

Material: aluminum

Version: 2-/3-x10speed

Cage length: medium cage

Largest sprocket: 32 teeth (3-speed crankset), 34 teeth (2-speed crankset)

Overall capacity: 41 teeth (3-speed crankset), 39 teeth (2-speed crankset)

Smallest sprocket: 11 teeth

Highest difference of chain wheel: 20 teeth (3-speed crankset), 16 teeth (2-speed crankset)