Alliance 643 Forestar III is engineered for ultimate track compatibility. Even without tracks it provides exceptional grip under critical forestry conditions. With improved heavier nylon steel belted construction and reinforced hexagonal bead technology, 643 Forestar III ensures excellent puncture resistance, high load carrying capacity and prevents rim slippage. The unique tread pattern with wider shoulder lugs and horizontal grooves enhances track compatibility and overall lateral stability. Excellent self-cleaning, superior grip and resilient construction makes 643 Forestar III the perfect solution for all your forestry needs.