This is because aluminum wheels can reduce, and if the is reasonable for the rim size of the vehicle. Aluminum wheels are also durable, and is better off theroad as compared to alloy wheels.
Aluminum alloy is stronger, and stronger than alloy wheels. It is also resistant to wear and tear as compared to alloy wheels. Aluminum wheels can be lighter than steel wheels and it is also one of the strongest materials and longevity. Some steel wheels are also made of aluminum, and chrome wheels.