Nitto EXO Grappler AWT 35x12.50r17lt E 121q EXO 34.8 35125017 Gear Shaped Block Edges The gear shaped block edges reinforce center tread blocks and provide a stable contact patch. They also help reduce stone retention and stone drilling. Variable Pitch Tread Blocks The computer analyzed tread block arrangement reduces tire noise normally heard at highway driving speeds. Sidewall Technology The staggered shoulder blocks provide biting edges for off-road traction in loose dirt surfaces. The 3-ply sidewall with large sidewall lugs offer additional sidewall strength and puncture resistance. Dual Sidewall Designs Each Grappler has two sidewall designs so you can choose how your tires look. On the Exo Grappler one side has three-dimensional butresses and the other has Y-shaped butresses. This feature was an engineering feat since even a small weight imbalance can cause unwanted vibrations. Nitto produces exceptionally uniform off-road tires even with different designs. Winter Performance Rated with the 3-peak mountain snowflake for winter driving conditions, the Exo Grapplers sipes and large lateral grooves provide biting edges as well as water and snow/slush evacuation. These tread features are combined with a new durable compound that allows for traction in freezing temperatures. For additional traction, option TSMI #15 studs can be added for increased winter traction.