Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/75-19.5 | 305/70-19.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.97 (862.8) | 36.31 (922.3) | 2.34 (59.5) 6.9% |
| Width inches (mm) | 9.65 (245) | 12.01 (305) | 2.36 (60) 24.5% |
| Circum. inches (mm) | 106.72 (2710.57) | 114.07 (2897.49) | 7.36 (186.92) 6.9% |
| Sidewall Height inches (mm) | 7.23 (183.75) | 8.41 (213.5) | 1.17 (29.75) 16.2% |
| Revolutions per mile (km) | 593.73 (368.93) | 555.43 (345.13) | -38.3 (-23.8) -6.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.38 mph (34.41 km/h) |
| 25 mph (40.23 km/h) | 26.72 mph (43.01 km/h) |
| 30 mph (48.28 km/h) | 32.07 mph (51.61 km/h) |
| 35 mph (56.33 km/h) | 37.41 mph (60.21 km/h) |
| 40 mph (64.37 km/h) | 42.76 mph (68.81 km/h) |
| 45 mph (72.42 km/h) | 48.1 mph (77.41 km/h) |
| 50 mph (80.47 km/h) | 53.45 mph (86.02 km/h) |
| 55 mph (88.51 km/h) | 58.79 mph (94.62 km/h) |
| 60 mph (96.56 km/h) | 64.14 mph (103.22 km/h) |
| 65 mph (104.61 km/h) | 69.48 mph (111.82 km/h) |
| 70 mph (112.65 km/h) | 74.83 mph (120.42 km/h) |
| 75 mph (120.7 km/h) | 80.17 mph (129.02 km/h) |
| 80 mph (128.75 km/h) | 85.52 mph (137.63 km/h) |
| 85 mph (136.79 km/h) | 90.86 mph (146.23 km/h) |
| 90 mph (144.84 km/h) | 96.21 mph (154.83 km/h) |
| 95 mph (152.89 km/h) | 101.55 mph (163.43 km/h) |
| 100 mph (160.93 km/h) | 106.9 mph (172.03 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1413 | 1642 | 1768 | 1847 | 1931 | 1991 | 2057 | 2135 | 2243 | 2352 | 2472 | 2568 | 2743 | 2935 | 3086 | 3182 | 3236 | 3434 | 3711 | 4313 |
Better Fuel Economy Factory Ratios Increased Power
