First front rib tire designed exclusively for ATV use. Each knob is reinforced for superior tracking and cornering. Superior cornering stability in all terrains. One of the best and most popular replacement tires on the market. Good match for the Scorpion rear. Lightweight 2-ply rated casing. Tire Specifications: Ply rating: 2. OD inches: 20.51. OD mm: 523. SW inches: 7.18. SW mm: 183. Maximum load: 195 pounds / 88.64 kg. Maximum PSI: 5. Tread depth: 13 mm. Weight: 14.35 pounds.