Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/75-17 | 235/80-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.47 (799.3) | 31.8 (807.8) | 0.33 (8.5) 1.1% |
| Width inches (mm) | 9.65 (245) | 9.25 (235) | -0.39 (-10) -4.1% |
| Circum. inches (mm) | 98.86 (2511.08) | 99.91 (2537.78) | 1.05 (26.7) 1.1% |
| Sidewall Height inches (mm) | 7.23 (183.75) | 7.4 (188) | 0.17 (4.25) 2.3% |
| Revolutions per mile (km) | 640.9 (398.24) | 634.15 (394.04) | -6.74 (-4.19) -1.1% |
235/80-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.21 mph (32.53 km/h) |
| 25 mph (40.23 km/h) | 25.27 mph (40.66 km/h) |
| 30 mph (48.28 km/h) | 30.32 mph (48.79 km/h) |
| 35 mph (56.33 km/h) | 35.37 mph (56.93 km/h) |
| 40 mph (64.37 km/h) | 40.43 mph (65.06 km/h) |
| 45 mph (72.42 km/h) | 45.48 mph (73.19 km/h) |
| 50 mph (80.47 km/h) | 50.53 mph (81.32 km/h) |
| 55 mph (88.51 km/h) | 55.58 mph (89.46 km/h) |
| 60 mph (96.56 km/h) | 60.64 mph (97.59 km/h) |
| 65 mph (104.61 km/h) | 65.69 mph (105.72 km/h) |
| 70 mph (112.65 km/h) | 70.74 mph (113.85 km/h) |
| 75 mph (120.7 km/h) | 75.8 mph (121.98 km/h) |
| 80 mph (128.75 km/h) | 80.85 mph (130.12 km/h) |
| 85 mph (136.79 km/h) | 85.9 mph (138.25 km/h) |
| 90 mph (144.84 km/h) | 90.96 mph (146.38 km/h) |
| 95 mph (152.89 km/h) | 96.01 mph (154.51 km/h) |
| 100 mph (160.93 km/h) | 101.06 mph (162.65 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1614 | 1875 | 2019 | 2108 | 2204 | 2273 | 2349 | 2438 | 2561 | 2685 | 2822 | 2932 | 3131 | 3351 | 3523 | 3633 | 3695 | 3921 | 4237 | 4924 |
Better Fuel Economy Factory Ratios Increased Power
