The Westlake SU318 HWY tire comes in 255/70R17. It has a Load Index of 112 which means the tire is rated to hold up to 2469 lbs. The tire has a Speed Rating of T so it is rated to go up to 118 mph. The tire comes in a Black Side Wall.

The SU318 HWY features an innovative silica compound and sipes that enhance handling capabilities on dry road surfaces. This compound forms into a touring optimized tread pattern that ensures reliable performance, all year long. The tread is also designed to minimize road noise for a tranquil ride. A group of four, broad circumferential grooves within the tread bolster lateral traction, grip, and wet handling capabilities. Westlake employs a contemporary CAD designed bloc and siping pattern that reduce unwanted noise. Internally, the SU318 features a steel bead wire that further decreases noise levels for premium ride comfort that lasts all year long.