Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/80-17 | 245/80-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.8 (807.8) | 32.43 (823.8) | 0.63 (16) 2% |
| Width inches (mm) | 9.25 (235) | 9.65 (245) | 0.39 (10) 4.3% |
| Circum. inches (mm) | 99.91 (2537.78) | 101.89 (2588.04) | 1.98 (50.27) 2% |
| Sidewall Height inches (mm) | 7.4 (188) | 7.72 (196) | 0.31 (8) 4.3% |
| Revolutions per mile (km) | 634.15 (394.04) | 621.84 (386.39) | -12.32 (-7.65) -1.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.4 mph (32.82 km/h) |
| 25 mph (40.23 km/h) | 25.5 mph (41.03 km/h) |
| 30 mph (48.28 km/h) | 30.59 mph (49.24 km/h) |
| 35 mph (56.33 km/h) | 35.69 mph (57.44 km/h) |
| 40 mph (64.37 km/h) | 40.79 mph (65.65 km/h) |
| 45 mph (72.42 km/h) | 45.89 mph (73.86 km/h) |
| 50 mph (80.47 km/h) | 50.99 mph (82.06 km/h) |
| 55 mph (88.51 km/h) | 56.09 mph (90.27 km/h) |
| 60 mph (96.56 km/h) | 61.19 mph (98.47 km/h) |
| 65 mph (104.61 km/h) | 66.29 mph (106.68 km/h) |
| 70 mph (112.65 km/h) | 71.39 mph (114.89 km/h) |
| 75 mph (120.7 km/h) | 76.49 mph (123.09 km/h) |
| 80 mph (128.75 km/h) | 81.58 mph (131.3 km/h) |
| 85 mph (136.79 km/h) | 86.68 mph (139.5 km/h) |
| 90 mph (144.84 km/h) | 91.78 mph (147.71 km/h) |
| 95 mph (152.89 km/h) | 96.88 mph (155.92 km/h) |
| 100 mph (160.93 km/h) | 101.98 mph (164.12 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1582 | 1838 | 1980 | 2067 | 2162 | 2229 | 2303 | 2391 | 2512 | 2633 | 2768 | 2875 | 3071 | 3286 | 3454 | 3562 | 3623 | 3845 | 4155 | 4828 |
Better Fuel Economy Factory Ratios Increased Power
