The problem of flat spots and possible consequential damage to the chassis are well known.
Leading platforms for product and price comparison for parts, accessories and services for cars, such as Reifen.de, online car magazines such as Autozeitung.de, and leading companies in the field of tire research and manufacturing such as michelinman.com describe preventive measures with their advantages and disadvantages.
Contrary to popular opinion over-inflating the tires or jacking up the vehicle or trailer for storage is not recommended, as the tires or chassis can be damaged.
A suitable solution appears to be a base that is sufficiently high so that tires with high sidewalls do not rest on the ground, sufficiently enlarges the contact surface of the tires and distributes the pressure evenly and constantly. To do this, it must have a suitable constant resistance - which, unlike air cushions, is independent of normal temperature fluctuations - as well as sufficient stability and contact surface.
In summary, the use of sufficiently stable, non-air-filled tire cushions with suitable resistance and sufficient contact area and height appears to be the only sensible and – in contrast to a curved surface – effective measure for all wheel sizes.
