Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/70-22.5 | 285/70-19.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 39.31 (998.5) | 35.21 (894.3) | -4.1 (-104.2) -10.4% |
| Width inches (mm) | 12.01 (305) | 11.22 (285) | -0.79 (-20) -6.6% |
| Circum. inches (mm) | 123.5 (3136.88) | 110.61 (2809.53) | -12.89 (-327.35) -10.4% |
| Sidewall Height inches (mm) | 8.41 (213.5) | 7.85 (199.5) | -0.55 (-14) -6.6% |
| Revolutions per mile (km) | 513.04 (318.79) | 572.82 (355.93) | 59.78 (37.14) 11.7% |
285/70-19.5 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.91 mph (28.83 km/h) |
| 25 mph (40.23 km/h) | 22.39 mph (36.04 km/h) |
| 30 mph (48.28 km/h) | 26.87 mph (43.24 km/h) |
| 35 mph (56.33 km/h) | 31.35 mph (50.45 km/h) |
| 40 mph (64.37 km/h) | 35.83 mph (57.66 km/h) |
| 45 mph (72.42 km/h) | 40.3 mph (64.86 km/h) |
| 50 mph (80.47 km/h) | 44.78 mph (72.07 km/h) |
| 55 mph (88.51 km/h) | 49.26 mph (79.28 km/h) |
| 60 mph (96.56 km/h) | 53.74 mph (86.48 km/h) |
| 65 mph (104.61 km/h) | 58.22 mph (93.69 km/h) |
| 70 mph (112.65 km/h) | 62.7 mph (100.9 km/h) |
| 75 mph (120.7 km/h) | 67.17 mph (108.11 km/h) |
| 80 mph (128.75 km/h) | 71.65 mph (115.31 km/h) |
| 85 mph (136.79 km/h) | 76.13 mph (122.52 km/h) |
| 90 mph (144.84 km/h) | 80.61 mph (129.73 km/h) |
| 95 mph (152.89 km/h) | 85.09 mph (136.93 km/h) |
| 100 mph (160.93 km/h) | 89.56 mph (144.14 km/h) |
| 2.35 | 2.73 | 2.94 | 3.07 | 3.21 | 3.31 | 3.42 | 3.55 | 3.73 | 3.91 | 4.11 | 4.27 | 4.56 | 4.88 | 5.13 | 5.29 | 5.38 | 5.71 | 6.17 | 7.17 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1458 | 1693 | 1824 | 1904 | 1991 | 2053 | 2121 | 2202 | 2314 | 2425 | 2549 | 2649 | 2829 | 3027 | 3182 | 3281 | 3337 | 3542 | 3827 | 4448 |
Better Fuel Economy Factory Ratios Increased Power
