Lighter wheels can improve handling because they lower unsprung mass, which allows suspension to follow the terrain more closely and boost grip. This is true even if certain alloy wheels are lighter than their steel equivalents. The Prius OEM 17 Alloy Rim is Used for Reducing the vehicle’s overall bulk can also help reduce fuel usage. In order to increase brake performance in challenging driving conditions and reduce the likelihood of overheating-related brake degradation or failure, more open wheel designs and improved heat conduction can assist dissipate brake heat, therefore these alloy rims are best for wheels and give us perfect driving experience for all drivers.