The GJT is a large-knobbed trail tire ready for the big, fast, and rough trails. - A row of big center knobs helps the tire attack the trail, keeping good traction and braking - The alternating center and shoulder knobs make for a tire to be rolled easily from the center to the outside - Supportive side knobs allow you to roll the tire to the edge with confidence in the corners - Sidewall protection lets you charge through the trails