Nexen Roadian MTX 37X13.50R20/12 128Q16401NXK 37 13. 5 20 3713. 520 37135020 3713520 Nexen Roadian MTX37 13. 5 20 The Nexen Roadian HTX RH5 is a highway terrain all season tire made for passenger vehicles, SUVs and light trucks. Nexen offers a 40,000 mile treadwear warranty with the light truck sizes and a 65,000 mile tread wear warranty with the passenger vehicle and SUV sizes of this model. The tire has exceptional all weather traction and it grips the road well in dry, wet and even