Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/40-17 | 225/40-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.03 (635.8) | 24.09 (611.8) | -0.94 (-24) -3.8% |
| Width inches (mm) | 10.04 (255) | 8.86 (225) | -1.18 (-30) -11.8% |
| Circum. inches (mm) | 78.64 (1997.42) | 75.67 (1922.03) | -2.97 (-75.4) -3.8% |
| Sidewall Height inches (mm) | 4.02 (102) | 3.54 (90) | -0.47 (-12) -11.8% |
| Revolutions per mile (km) | 805.71 (500.64) | 837.32 (520.28) | 31.61 (19.64) 3.9% |
225/40-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.25 mph (30.97 km/h) |
| 25 mph (40.23 km/h) | 24.06 mph (38.71 km/h) |
| 30 mph (48.28 km/h) | 28.87 mph (46.46 km/h) |
| 35 mph (56.33 km/h) | 33.68 mph (54.2 km/h) |
| 40 mph (64.37 km/h) | 38.49 mph (61.94 km/h) |
| 45 mph (72.42 km/h) | 43.3 mph (69.69 km/h) |
| 50 mph (80.47 km/h) | 48.11 mph (77.43 km/h) |
| 55 mph (88.51 km/h) | 52.92 mph (85.17 km/h) |
| 60 mph (96.56 km/h) | 57.74 mph (92.92 km/h) |
| 65 mph (104.61 km/h) | 62.55 mph (100.66 km/h) |
| 70 mph (112.65 km/h) | 67.36 mph (108.4 km/h) |
| 75 mph (120.7 km/h) | 72.17 mph (116.14 km/h) |
| 80 mph (128.75 km/h) | 76.98 mph (123.89 km/h) |
| 85 mph (136.79 km/h) | 81.79 mph (131.63 km/h) |
| 90 mph (144.84 km/h) | 86.6 mph (139.37 km/h) |
| 95 mph (152.89 km/h) | 91.41 mph (147.12 km/h) |
| 100 mph (160.93 km/h) | 96.23 mph (154.86 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2131 | 2475 | 2666 | 2784 | 2911 | 3001 | 3101 | 3219 | 3382 | 3545 | 3727 | 3872 | 4135 | 4425 | 4652 | 4797 | 4878 | 5177 | 5595 | 6501 |
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