No air! And much less petroleum in their manufacture. Check these out...
Thought you might like to see the next generation of tires. They had a pair at the Philadelphia Car show.
Attached are pictures of the new Michelin tires. These tires are airless and are scheduled to be out on the market very soon.
The bad news for law enforcement is that spike strips will not work on these tires.
This is what great R&D will do and just think of the impact on existing technology :
* No more air valves
* No more air compressors at gas stations
* No more repair kits