Ridge Grappler Features: The ultimate hybrid tire Variable pitch tread pattern to reduce tire noise at highway speeds Shoulder and lateral Z grooves for better traction Staggered shoulder lugs Reinforced block foundation Stone ejectors Step block edges Dual sidewall designs for personalizing Fully Capable Hybrid Nitto Ridge Grappler Tires Nitto’s Ridge Grappler provides a comfortable, quiet, ride with the proper lugs and tread pattern to give you exceptional off-road performance. Tread quieter on paved roads thanks to audio equipment that was used to create a tread pattern that doesn’t buzz nearly as much as a hybrid tire should.