Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/75-16.5 | 235/80-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.97 (786.6) | 30.8 (782.4) | -0.17 (-4.2) -0.5% |
| Width inches (mm) | 9.65 (245) | 9.25 (235) | -0.39 (-10) -4.1% |
| Circum. inches (mm) | 97.29 (2471.18) | 96.77 (2457.98) | -0.52 (-13.19) -0.5% |
| Sidewall Height inches (mm) | 7.23 (183.75) | 7.4 (188) | 0.17 (4.25) 2.3% |
| Revolutions per mile (km) | 651.25 (404.66) | 654.74 (406.84) | 3.5 (2.17) 0.5% |
235/80-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.89 mph (32.02 km/h) |
| 25 mph (40.23 km/h) | 24.87 mph (40.02 km/h) |
| 30 mph (48.28 km/h) | 29.84 mph (48.02 km/h) |
| 35 mph (56.33 km/h) | 34.81 mph (56.03 km/h) |
| 40 mph (64.37 km/h) | 39.79 mph (64.03 km/h) |
| 45 mph (72.42 km/h) | 44.76 mph (72.03 km/h) |
| 50 mph (80.47 km/h) | 49.73 mph (80.04 km/h) |
| 55 mph (88.51 km/h) | 54.71 mph (88.04 km/h) |
| 60 mph (96.56 km/h) | 59.68 mph (96.05 km/h) |
| 65 mph (104.61 km/h) | 64.65 mph (104.05 km/h) |
| 70 mph (112.65 km/h) | 69.63 mph (112.05 km/h) |
| 75 mph (120.7 km/h) | 74.6 mph (120.06 km/h) |
| 80 mph (128.75 km/h) | 79.57 mph (128.06 km/h) |
| 85 mph (136.79 km/h) | 84.55 mph (136.06 km/h) |
| 90 mph (144.84 km/h) | 89.52 mph (144.07 km/h) |
| 95 mph (152.89 km/h) | 94.49 mph (152.07 km/h) |
| 100 mph (160.93 km/h) | 99.47 mph (160.08 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1666 | 1936 | 2085 | 2177 | 2276 | 2347 | 2425 | 2517 | 2645 | 2772 | 2914 | 3028 | 3233 | 3460 | 3637 | 3751 | 3815 | 4048 | 4375 | 5084 |
Better Fuel Economy Factory Ratios Increased Power
