Numerous traction tests of tires and belts have been conducted over the last few years. These tests cover a range of tire sizes, weights, and tire pressures as well as a range of belt sizes tested on vehicles of various configurations. Use of wider belts provides̳ the greatest tractive performance improvement under the more adverse tractive conditions. Larger diameter tires with longer footprint operating at correct low pressure nearly equal the performance of belts when tractive conditions are good.
