The Harness forms a firm (optional) base for the other parts, which are fixed with a combination of supplied straps featuring closed loops, strong aluminium alloy G-hoops and rugged plastic snap-in buckle clips. It looks bewildering at first but (slowly) makes sense as, following the instructions, you discover how best to attach the harness to your own particular bike, followed by the luggage itself. You only really need the harness if you want to sling bags at the side, low-down, pannier-style; otherwise, the packs can be mounted on your rack or pillion seat, using their own strap arrangements.
