Drive with confidence with these AMP Terrain Attack AT A All Terrain tires. This specific set of tires comes in a 37×12.50R20 configuration with a R speed index and a load rating of 126. Tires are the only thing that connect your vehicle to the ground and keep you safe while you’re on the road. Make sure your next set is one you can trust. The AMP Terrain Attack AT A are built to ensure you get where you need to go; safely. Hosting a Full Manufacturer Warranty warranty, these AMP Terrain Attack AT A tires are built to handle your lifestyle.