about 3 to 4 mph slower than the full-tread tires. As the chart in All-season-tire wear shows, that represents a nearly 8 percent drop in hydroplaning resistance compared with the same model tires ...

On average, with the half-tread tires, there was: A 14 percent decline in snow traction (based on the measured distance that it takes a vehicle to get up to speed). An 8 percent loss in ...

That marks an increase from 10.4 percent reported in a similar survey that was conducted in 2010. Of course, the less tread your tire has, the more dangerous it is to drive on it – no matter ...