You know your tyres have traction when you can hear them grabbing the road. When you get to where you need new tyres, consider the Trxus STS. I was pretty blown away by the amount of traction they have. I have no idea what the speed rating is, but 85MPH doesn't seem to be a problem. My other car has much larger Trxus MTs. Utterly amazing tyres. Great off road performance, excellent on road performance.