Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 33/11.5-15 | 280/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.93 (836.52) | 30.43 (773) | -2.5 (-63.52) -7.6% |
| Width inches (mm) | 11.5 (292) | 11.02 (280) | -0.47 (-12) -4.1% |
| Circum. inches (mm) | 103.46 (2628.01) | 95.61 (2428.45) | -7.86 (-199.55) -7.6% |
| Sidewall Height inches (mm) | 8.97 (227.76) | 7.72 (196) | -1.25 (-31.76) -13.9% |
| Revolutions per mile (km) | 612.38 (380.52) | 662.7 (411.78) | 50.32 (31.27) 8.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.48 mph (29.74 km/h) |
| 25 mph (40.23 km/h) | 23.1 mph (37.18 km/h) |
| 30 mph (48.28 km/h) | 27.72 mph (44.61 km/h) |
| 35 mph (56.33 km/h) | 32.34 mph (52.05 km/h) |
| 40 mph (64.37 km/h) | 36.96 mph (59.49 km/h) |
| 45 mph (72.42 km/h) | 41.58 mph (66.92 km/h) |
| 50 mph (80.47 km/h) | 46.2 mph (74.36 km/h) |
| 55 mph (88.51 km/h) | 50.82 mph (81.79 km/h) |
| 60 mph (96.56 km/h) | 55.44 mph (89.23 km/h) |
| 65 mph (104.61 km/h) | 60.06 mph (96.66 km/h) |
| 70 mph (112.65 km/h) | 64.68 mph (104.1 km/h) |
| 75 mph (120.7 km/h) | 69.3 mph (111.54 km/h) |
| 80 mph (128.75 km/h) | 73.93 mph (118.97 km/h) |
| 85 mph (136.79 km/h) | 78.55 mph (126.41 km/h) |
| 90 mph (144.84 km/h) | 83.17 mph (133.84 km/h) |
| 95 mph (152.89 km/h) | 87.79 mph (141.28 km/h) |
| 100 mph (160.93 km/h) | 92.41 mph (148.71 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1686 | 1959 | 2110 | 2203 | 2304 | 2375 | 2454 | 2548 | 2677 | 2806 | 2950 | 3064 | 3272 | 3502 | 3681 | 3796 | 3861 | 4098 | 4428 | 5145 |
Better Fuel Economy Factory Ratios Increased Power
