Specifically intended for the RS6 avant, with flush roof rails. Kit includes all needed mounting components for installation onto the RS6 avant. Thule WingBar Edge: Premium aerodynamic load bar for an exceptionally quiet ride and easy installation of accessories. 1-pack. Thule Edge Clamp: Easy-to-install foot for Thule Edge roof racks, for vehicles without pre-existing roof rack attachment points, or factory-installed racks. Features: Load bar for Thule Edge roof rack system WindDiffuser technology disturbs airflow to reduce noise and drag for improved fuel economy TrailEdge design reduces aerodynamic drag by allowing clean air separation from bar Designed and developed for swift click-in assembly with Thule Edge load carrier feet, providing an integrated, low-profile roof rack and a custom look Smooth installation and removal of accessories thanks to upper T-track with QuickAccess interface BoxBeam internal structure creates an exceptionally strong load bar Check the Thule Buyer's Guide for your vehicle's recommended bar length Load bar for Thule Edge roof rack system WindDiffuser technology disturbs airflow to reduce noise and drag for improved fuel economy TrailEdge design reduces aerodynamic drag by allowing clean air separation from bar Designed and developed for swift click-in assembly with Thule Edge load carrier feet, providing an integrated, low-profile roof rack and a custom look Smooth installation and removal of accessories thanks to upper T-track with QuickAccess interface BoxBeam internal structure creates an exceptionally strong load bar Check the Thule Buyer's Guide for your vehicle's recommended bar length Foot: Load carrier feet for Thule Edge roof rack system Foot: Foot installs easily onto vehicles with flush railings Foot: Ergonomic torque limiter key indicates when the rack is safely and properly secured to your vehicle Foot: Secures to vehicle with Thule One-Key locks (sold separately) Check the Thule Buyer's Guide to find out which roof rack fits your car Kit: Fit kit for vehicles with flush railings Kit: Comes as a package of four and helps attach a complete roof rack system to your specific car Kit: Compatible with Thule Evo Flush Rail and Thule Edge Flush Rail foot packs Kit: Check the Thule Buyer's Guide to find out which fit kit fits your car Maximum Weight Limit: 165lbs