Compounds tested in the most severe Rally Raids in the world: High resistance to hard wear and stable performance even over the longest stretches - maximum resistance to consumption and to tearing even over long distances. Patented reinforced carcass stru Rally‑ready design — built for adventure, dual‑sport, and rally motorcycles needing dependable front‑end traction. 90/90‑21 size — fits standard 21‑inch front rims for many ADV and off‑road bikes. 54R load/speed rating — supports up to 467 lbs with stable performance up to R‑rated speeds. Bias‑ply construction — enhances durability, impact resistance, and predictable handling on rough terrain. Tubeless (TL) — easier maintenance, better puncture resistance, and improved heat control. Ply 6-Ply Size 90/90-21 Seasons Year Round Rim Size 21 Inches Rim Width 21 Inches Brand Name Pirelli Load Index 54.00 Model Year 2013 Tread Type Non-Directional or Symmetrical Unit Count 1.0 Count Item Weight 0.01 Ounces Tread Depth 0.44 Inches Manufacturer Pirelli Model Number 1745300 Speed Rating R Load Capacity [2535] Pounds Section Width 90 Millimeters Tire Diameter 90 Inches Item Type Name VEHICLE_TIRE Item Dimensions 23.62 x 7.87 x 23.62 inches Construction Type Reinforced Tire Aspect Ratio 90.0 Automotive Fit Type Vehicle Specific Fit Included Components Pirelli 1745300 Manufacturer Part Number 1745300 OEM Equivalent Part Number 1745300 Manufacturer Warranty Description Manufacturer Warranty Global Trade Identification Number 08019227174533 Vehicle Tire ISO Metric Size Description 90/90-21R