Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 280/80-16 | 285/30-24 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.64 (854.4) | 30.73 (780.6) | -2.91 (-73.8) -8.6% |
| Width inches (mm) | 11.02 (280) | 11.22 (285) | 0.2 (5) 1.8% |
| Circum. inches (mm) | 105.68 (2684.18) | 96.55 (2452.33) | -9.13 (-231.85) -8.6% |
| Sidewall Height inches (mm) | 8.82 (224) | 3.37 (85.5) | -5.45 (-138.5) -61.8% |
| Revolutions per mile (km) | 599.57 (372.55) | 656.25 (407.78) | 56.68 (35.22) 9.5% |
285/30-24 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.27 mph (29.41 km/h) |
| 25 mph (40.23 km/h) | 22.84 mph (36.76 km/h) |
| 30 mph (48.28 km/h) | 27.41 mph (44.11 km/h) |
| 35 mph (56.33 km/h) | 31.98 mph (51.46 km/h) |
| 40 mph (64.37 km/h) | 36.54 mph (58.81 km/h) |
| 45 mph (72.42 km/h) | 41.11 mph (66.17 km/h) |
| 50 mph (80.47 km/h) | 45.68 mph (73.52 km/h) |
| 55 mph (88.51 km/h) | 50.25 mph (80.87 km/h) |
| 60 mph (96.56 km/h) | 54.82 mph (88.22 km/h) |
| 65 mph (104.61 km/h) | 59.39 mph (95.57 km/h) |
| 70 mph (112.65 km/h) | 63.95 mph (102.92 km/h) |
| 75 mph (120.7 km/h) | 68.52 mph (110.28 km/h) |
| 80 mph (128.75 km/h) | 73.09 mph (117.63 km/h) |
| 85 mph (136.79 km/h) | 77.66 mph (124.98 km/h) |
| 90 mph (144.84 km/h) | 82.23 mph (132.33 km/h) |
| 95 mph (152.89 km/h) | 86.79 mph (139.68 km/h) |
| 100 mph (160.93 km/h) | 91.36 mph (147.03 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1670 | 1940 | 2089 | 2182 | 2281 | 2352 | 2430 | 2523 | 2651 | 2779 | 2921 | 3034 | 3241 | 3468 | 3646 | 3759 | 3823 | 4058 | 4385 | 5095 |
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