The adaptor for the side of the roof rack makes it possible to mount the CRUZ Pipe Carrier 2m and CRUZ Pipe Carrier 3m on the side of the CRUZ Evo Rack and CRUZ Evo Rack Pro.
If you want to add additional 1 meter sections (CRUZ Pipe Carrier extension +1m), you need to purchase an additional unit of the CRUZ Evo Rack/Evo Rack Pro adaptor for side mounting.