Description

Designed for bikes with double cranksets, this medium-cage microSHIFT R9 9-speed rear derailleur keeps weight low and performance high with a design that marries form and function.

Features

• Designed for use with a double crankset (2 x 9-speed system)
• Derailleur capacity is 39 teeth; maximum cog size of 34 teeth
• Aluminum bracket body and outer link save weight
• Steel pulley cage provides extra chain-rub durability
• Compatible with most Shimano 9-speed road systems; not compatible with Shimano Tiagra 4700 road system