Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/50-17 | 225/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.28 (616.8) | 24.97 (634.3) | 0.69 (17.5) 2.8% |
| Width inches (mm) | 7.28 (185) | 8.86 (225) | 1.57 (40) 21.6% |
| Circum. inches (mm) | 76.29 (1937.73) | 78.45 (1992.71) | 2.16 (54.98) 2.8% |
| Sidewall Height inches (mm) | 3.64 (92.5) | 3.99 (101.25) | 0.34 (8.75) 9.5% |
| Revolutions per mile (km) | 830.53 (516.07) | 807.61 (501.83) | -22.91 (-14.24) -2.8% |
225/45-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.57 mph (33.1 km/h) |
| 25 mph (40.23 km/h) | 25.71 mph (41.38 km/h) |
| 30 mph (48.28 km/h) | 30.85 mph (49.65 km/h) |
| 35 mph (56.33 km/h) | 35.99 mph (57.93 km/h) |
| 40 mph (64.37 km/h) | 41.13 mph (66.2 km/h) |
| 45 mph (72.42 km/h) | 46.28 mph (74.48 km/h) |
| 50 mph (80.47 km/h) | 51.42 mph (82.75 km/h) |
| 55 mph (88.51 km/h) | 56.56 mph (91.03 km/h) |
| 60 mph (96.56 km/h) | 61.7 mph (99.3 km/h) |
| 65 mph (104.61 km/h) | 66.84 mph (107.58 km/h) |
| 70 mph (112.65 km/h) | 71.99 mph (115.85 km/h) |
| 75 mph (120.7 km/h) | 77.13 mph (124.13 km/h) |
| 80 mph (128.75 km/h) | 82.27 mph (132.4 km/h) |
| 85 mph (136.79 km/h) | 87.41 mph (140.68 km/h) |
| 90 mph (144.84 km/h) | 92.55 mph (148.95 km/h) |
| 95 mph (152.89 km/h) | 97.7 mph (157.23 km/h) |
| 100 mph (160.93 km/h) | 102.84 mph (165.5 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2055 | 2388 | 2571 | 2685 | 2807 | 2895 | 2991 | 3105 | 3262 | 3420 | 3594 | 3734 | 3988 | 4268 | 4487 | 4626 | 4705 | 4994 | 5396 | 6271 |
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