I've seen this picture many times but never noticed the rear wheels on the truck. They look like solid metal to me. Anyone have any more info? EDIT: I see now it is a Skoda RSO Radschlepper Ost - Wikipedia
Embarrassing. Here 24" low profile tires are called 'All days" in street lingo. They usually last a couple of weeks at most before busting the tire and breaking the wheel.