Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/45-15 | 245/45-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.04 (610.5) | 23.68 (601.5) | -0.35 (-9) -1.5% |
| Width inches (mm) | 10.04 (255) | 9.65 (245) | -0.39 (-10) -3.9% |
| Circum. inches (mm) | 75.51 (1917.94) | 74.4 (1889.67) | -1.11 (-28.27) -1.5% |
| Sidewall Height inches (mm) | 4.52 (114.75) | 4.34 (110.25) | -0.18 (-4.5) -3.9% |
| Revolutions per mile (km) | 839.1 (521.39) | 851.65 (529.19) | 12.56 (7.8) 1.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.71 mph (31.71 km/h) |
| 25 mph (40.23 km/h) | 24.63 mph (39.64 km/h) |
| 30 mph (48.28 km/h) | 29.56 mph (47.57 km/h) |
| 35 mph (56.33 km/h) | 34.48 mph (55.5 km/h) |
| 40 mph (64.37 km/h) | 39.41 mph (63.42 km/h) |
| 45 mph (72.42 km/h) | 44.34 mph (71.35 km/h) |
| 50 mph (80.47 km/h) | 49.26 mph (79.28 km/h) |
| 55 mph (88.51 km/h) | 54.19 mph (87.21 km/h) |
| 60 mph (96.56 km/h) | 59.12 mph (95.14 km/h) |
| 65 mph (104.61 km/h) | 64.04 mph (103.07 km/h) |
| 70 mph (112.65 km/h) | 68.97 mph (110.99 km/h) |
| 75 mph (120.7 km/h) | 73.89 mph (118.92 km/h) |
| 80 mph (128.75 km/h) | 78.82 mph (126.85 km/h) |
| 85 mph (136.79 km/h) | 83.75 mph (134.78 km/h) |
| 90 mph (144.84 km/h) | 88.67 mph (142.71 km/h) |
| 95 mph (152.89 km/h) | 93.6 mph (150.63 km/h) |
| 100 mph (160.93 km/h) | 98.53 mph (158.56 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2167 | 2518 | 2711 | 2831 | 2960 | 3053 | 3154 | 3274 | 3440 | 3606 | 3790 | 3938 | 4205 | 4501 | 4731 | 4879 | 4962 | 5266 | 5690 | 6613 |
Better Fuel Economy Factory Ratios Increased Power
