Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/75-16.5 | 235/80-17.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.97 (786.6) | 32.3 (820.5) | 1.33 (33.9) 4.3% |
| Width inches (mm) | 9.65 (245) | 9.25 (235) | -0.39 (-10) -4.1% |
| Circum. inches (mm) | 97.29 (2471.18) | 101.48 (2577.68) | 4.19 (106.5) 4.3% |
| 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) | 624.34 (387.95) | -26.91 (-16.72) -4.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.86 mph (33.57 km/h) |
| 25 mph (40.23 km/h) | 26.08 mph (41.97 km/h) |
| 30 mph (48.28 km/h) | 31.29 mph (50.36 km/h) |
| 35 mph (56.33 km/h) | 36.51 mph (58.75 km/h) |
| 40 mph (64.37 km/h) | 41.72 mph (67.15 km/h) |
| 45 mph (72.42 km/h) | 46.94 mph (75.54 km/h) |
| 50 mph (80.47 km/h) | 52.15 mph (83.94 km/h) |
| 55 mph (88.51 km/h) | 57.37 mph (92.33 km/h) |
| 60 mph (96.56 km/h) | 62.59 mph (100.72 km/h) |
| 65 mph (104.61 km/h) | 67.8 mph (109.12 km/h) |
| 70 mph (112.65 km/h) | 73.02 mph (117.51 km/h) |
| 75 mph (120.7 km/h) | 78.23 mph (125.9 km/h) |
| 80 mph (128.75 km/h) | 83.45 mph (134.3 km/h) |
| 85 mph (136.79 km/h) | 88.66 mph (142.69 km/h) |
| 90 mph (144.84 km/h) | 93.88 mph (151.08 km/h) |
| 95 mph (152.89 km/h) | 99.09 mph (159.48 km/h) |
| 100 mph (160.93 km/h) | 104.31 mph (167.87 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1589 | 1846 | 1988 | 2076 | 2170 | 2238 | 2312 | 2400 | 2522 | 2644 | 2779 | 2887 | 3083 | 3299 | 3468 | 3577 | 3637 | 3861 | 4172 | 4848 |
Better Fuel Economy Factory Ratios Increased Power
