Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/45-15 | 290/50-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.04 (610.5) | 26.42 (671) | 2.38 (60.5) 9.9% |
| Width inches (mm) | 10.04 (255) | 11.42 (290) | 1.38 (35) 13.7% |
| Circum. inches (mm) | 75.51 (1917.94) | 82.99 (2108.01) | 7.48 (190.07) 9.9% |
| Sidewall Height inches (mm) | 4.52 (114.75) | 5.71 (145) | 1.19 (30.25) 26.4% |
| Revolutions per mile (km) | 839.1 (521.39) | 763.44 (474.38) | -75.66 (-47.01) -9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.98 mph (35.38 km/h) |
| 25 mph (40.23 km/h) | 27.48 mph (44.22 km/h) |
| 30 mph (48.28 km/h) | 32.97 mph (53.06 km/h) |
| 35 mph (56.33 km/h) | 38.47 mph (61.91 km/h) |
| 40 mph (64.37 km/h) | 43.96 mph (70.75 km/h) |
| 45 mph (72.42 km/h) | 49.46 mph (79.6 km/h) |
| 50 mph (80.47 km/h) | 54.95 mph (88.44 km/h) |
| 55 mph (88.51 km/h) | 60.45 mph (97.29 km/h) |
| 60 mph (96.56 km/h) | 65.95 mph (106.13 km/h) |
| 65 mph (104.61 km/h) | 71.44 mph (114.97 km/h) |
| 70 mph (112.65 km/h) | 76.94 mph (123.82 km/h) |
| 75 mph (120.7 km/h) | 82.43 mph (132.66 km/h) |
| 80 mph (128.75 km/h) | 87.93 mph (141.51 km/h) |
| 85 mph (136.79 km/h) | 93.42 mph (150.35 km/h) |
| 90 mph (144.84 km/h) | 98.92 mph (159.19 km/h) |
| 95 mph (152.89 km/h) | 104.41 mph (168.04 km/h) |
| 100 mph (160.93 km/h) | 109.91 mph (176.88 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1943 | 2257 | 2431 | 2538 | 2654 | 2736 | 2827 | 2935 | 3084 | 3233 | 3398 | 3530 | 3770 | 4034 | 4241 | 4373 | 4448 | 4721 | 5101 | 5928 |
Better Fuel Economy Factory Ratios Increased Power
