The tailgate bike rack is attached using 6 straps. The bikes are secured using 6 frame locks and 1 red total tightening strap for added security. The straps have elastic tensioners to absorb the jolts of the bike rack. 100% assembled: installation of the tailgate bike rack is very simple and very quick! 4 high density foam pads (ø 65mm) protect the vehicle body. Tilt adjustment using a high-performance patented dog system. The dogs are indexed by numbers to facilitate installation: this will allow you to know the perfect setting on your vehicle. The uprights of the bike rack are covered with 2 foams to protect the bikes. Anti-rust thermo-cured epoxy powder paint. Assembly instructions (with assignment table on page 37): https://www.portevelo-mottez.