Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/50-20 | 285/40-24 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.43 (773) | 32.98 (837.6) | 2.54 (64.6) 8.4% |
| Width inches (mm) | 10.43 (265) | 11.22 (285) | 0.79 (20) 7.5% |
| Circum. inches (mm) | 95.61 (2428.45) | 103.6 (2631.4) | 7.99 (202.95) 8.4% |
| Sidewall Height inches (mm) | 5.22 (132.5) | 4.49 (114) | -0.73 (-18.5) -14% |
| Revolutions per mile (km) | 662.7 (411.78) | 611.59 (380.03) | -51.11 (-31.76) -7.7% |
285/40-24 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.67 mph (34.88 km/h) |
| 25 mph (40.23 km/h) | 27.09 mph (43.6 km/h) |
| 30 mph (48.28 km/h) | 32.51 mph (52.32 km/h) |
| 35 mph (56.33 km/h) | 37.92 mph (61.03 km/h) |
| 40 mph (64.37 km/h) | 43.34 mph (69.75 km/h) |
| 45 mph (72.42 km/h) | 48.76 mph (78.47 km/h) |
| 50 mph (80.47 km/h) | 54.18 mph (87.19 km/h) |
| 55 mph (88.51 km/h) | 59.6 mph (95.91 km/h) |
| 60 mph (96.56 km/h) | 65.01 mph (104.63 km/h) |
| 65 mph (104.61 km/h) | 70.43 mph (113.35 km/h) |
| 70 mph (112.65 km/h) | 75.85 mph (122.07 km/h) |
| 75 mph (120.7 km/h) | 81.27 mph (130.79 km/h) |
| 80 mph (128.75 km/h) | 86.69 mph (139.51 km/h) |
| 85 mph (136.79 km/h) | 92.1 mph (148.23 km/h) |
| 90 mph (144.84 km/h) | 97.52 mph (156.95 km/h) |
| 95 mph (152.89 km/h) | 102.94 mph (165.66 km/h) |
| 100 mph (160.93 km/h) | 108.36 mph (174.38 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1556 | 1808 | 1947 | 2033 | 2126 | 2192 | 2265 | 2351 | 2470 | 2590 | 2722 | 2828 | 3020 | 3232 | 3398 | 3504 | 3563 | 3782 | 4086 | 4749 |
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