The Kombi has a 1225mm wheelbase, which is about as long as a cruiser bike. Any regular bike rack with a tray long enough to accommodate the Kombi’s wheelbase will be just fine.
Since cargo bikes are slightly heavier than a cruiser, we’d suggest going with a roof rack or a hitch mounted rack that supports the bike by the wheels rather than hanging your bike by its top tube.
Hitch Size: 2” only
Max bike wheelbase: 60”