Continental HDR 225/70R-19.5 Truck Tires 1 SETS OF 4 TIRES AVAILABLE | 4 TIRES TOTAL | $1000.00 PER SET OF 4 16/32 Tread Depth On All 4 Tires HDR tires from Continental are designed to provide exceptional traction, longer tire life and tapered groove patterns to reject stone and other debris. Durable rubber compound materials resist damage and tapered grooves resist long-term damage that can limit performance. With offset treads, HDR tires are excellent all weather equipment.