Tractor Tire Size Chart (2026): Inches, Metric & Fitment Explained
Tractor tire size chart: inches, metric and fitment explained. The sidewall numbers only tell you part of it. Whether the tire fits your rim is one question. Whether it matches your front axle is another. On MFWD tractors, front and rear tires must maintain the correct rolling circumference ratio. Get that wrong and the front axle pulls too hard or too little. That leads to driveline strain and uneven tire wear. A tire from a different brand can have a different rolling circumference even with the same labeled size. So a front tire chart alone is not enough. You need the rear data too. Standard bias sizes like 16.9-30 mean 16.9-inch width and 30-inch rim. Metric sizes like 380/70R24 use millimeters for width and aspect ratio. Check load index, speed index, tread code, and approved rim width before ordering.












