The system has no flex, the bike's not going anywhere unless the tailgate pad does. With this webbing-and-strap system that Tesla uses, however, those straps will have give simply due to their length.

Tesla now offers a $300 tailgate shield that lets owners carry bikes over the ... Using the molle webbing on the tailgate ... The automaker offers several other accessories for the pickup, ...

Tesla now offers a tailgate protector for its “bulletproof” Cybertruck, ... but Tesla instead opts for two strips of what it claims to be MOLLE webbing along the interior of the pad.