Jagwire’s flexible shift housing is used for the rear housing segment with Shimano® Shadow-type road rear derailleurs to give optimum shifting performance and the flexibility needed for wheel installation and removal. For use with Shimano® Shadow type road rear derailleurs, such as RD-R9100, RD-R8000, and RD-R7000. 4mm low-compression CGX-SL housing construction. Includes 10x sealed end caps and 10x 4mm/4mm housing connectors