The Stovebolt Site Forums The Parking Lot Tons 'o Fun Need new tires, ditch the split rims?

First, I need to correct myself, Bias go on the front, not the rear. Basically, it's a handling issue. The DOT wants the tires with the best traction on the rear. The idea is that most of the safety devices in vehicles are made to protect in a front collision. So in the case of a low traction loss of control, they feel it's better to maintain stability with the rear of the vehicle and hit with the front to minimize injuries to the occupants. Thsi even applies to modern cars, especially FWDs.