Metal wheels are definitely better for the environment than tires that fit the wheels.
In the construction sector, where trucks and machinery move on dirt and mud, metal wheels have found application. They should only be used with compressed air suspension.
It is not yet known if they will ever be able to be ideal for use on asphalt.
The product was manufactured by the Arizona based company called Global Air Cylinder Wheels. The purpose of the company is to manufacture wheels that will last for the lifetime of the vehicle.
Tires in the construction sector can cost up to $75,000 and have a lifespan of up to nine months, as their use is intense and harsh. With metal wheels this cost is eliminated.
It was also proven that fuel consumption was reduced since the friction of the wheel with the ground is less.
As a result of reduced fuel consumption and no need to use tires, it will also benefit the environment.
[Source: http://www.bigthink.com]
