Jagwire 4mm Sport Derailleur Housing with Slick-Lube Liner 10M Roll Purple. 10 meter rolls of Jagwire Sport derailleur housing are pre-lubricated and come in a variety of color options.

Linear strand construction provides stiffness while remaining suitably bendable

Slick-Lube liner cuts friction and protects Teflon coated cables

Lube is introduced continuously as housing is extruded so there are no dry spots in the middle of the housing run