18×9.50-8 Tire Specification. Section Width: 9.5′. Rim Width: 7 IN. Tread Depth: 0.63′. Max Load: 1040 lbs. Weight: 14.09 lbs. The special lug design with bars that taper in the shoulder area, along with muted lug depth, allows it to be used as a drive tire on zero turn mower when extra traction is needed. It’s the right choice whenever the application requires substantial traction. The special lug design provides great traction, excellent grip and long life. The 4-ply HALBERD P328 Lawn Mower tires are a very durable replacement option. Bias-ply tires are the preferred choice for commercial use, agricultural use.