Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/90-18 | 225/50-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.69 (754.2) | 25.86 (656.8) | -3.83 (-97.4) -12.9% |
| Width inches (mm) | 6.5 (165) | 8.86 (225) | 2.36 (60) 36.4% |
| Circum. inches (mm) | 93.28 (2369.39) | 81.24 (2063.4) | -12.05 (-305.99) -12.9% |
| Sidewall Height inches (mm) | 5.85 (148.5) | 4.43 (112.5) | -1.42 (-36) -24.2% |
| Revolutions per mile (km) | 679.22 (422.05) | 779.95 (484.64) | 100.73 (62.59) 14.8% |
225/50-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.42 mph (28.03 km/h) |
| 25 mph (40.23 km/h) | 21.77 mph (35.04 km/h) |
| 30 mph (48.28 km/h) | 26.13 mph (42.05 km/h) |
| 35 mph (56.33 km/h) | 30.48 mph (49.05 km/h) |
| 40 mph (64.37 km/h) | 34.83 mph (56.06 km/h) |
| 45 mph (72.42 km/h) | 39.19 mph (63.07 km/h) |
| 50 mph (80.47 km/h) | 43.54 mph (70.08 km/h) |
| 55 mph (88.51 km/h) | 47.9 mph (77.08 km/h) |
| 60 mph (96.56 km/h) | 52.25 mph (84.09 km/h) |
| 65 mph (104.61 km/h) | 56.61 mph (91.1 km/h) |
| 70 mph (112.65 km/h) | 60.96 mph (98.11 km/h) |
| 75 mph (120.7 km/h) | 65.31 mph (105.11 km/h) |
| 80 mph (128.75 km/h) | 69.67 mph (112.12 km/h) |
| 85 mph (136.79 km/h) | 74.02 mph (119.13 km/h) |
| 90 mph (144.84 km/h) | 78.38 mph (126.14 km/h) |
| 95 mph (152.89 km/h) | 82.73 mph (133.14 km/h) |
| 100 mph (160.93 km/h) | 87.09 mph (140.15 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1985 | 2306 | 2483 | 2593 | 2711 | 2796 | 2889 | 2998 | 3150 | 3302 | 3471 | 3606 | 3851 | 4122 | 4333 | 4468 | 4544 | 4823 | 5211 | 6056 |
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