Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/55-17 | 245/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.18 (690.3) | 25.68 (652.3) | -1.5 (-38) -5.5% |
| Width inches (mm) | 9.25 (235) | 9.65 (245) | 0.39 (10) 4.3% |
| Circum. inches (mm) | 85.38 (2168.64) | 80.68 (2049.26) | -4.7 (-119.38) -5.5% |
| Sidewall Height inches (mm) | 5.09 (129.25) | 4.34 (110.25) | -0.75 (-19) -14.7% |
| Revolutions per mile (km) | 742.1 (461.12) | 785.33 (487.98) | 43.23 (26.86) 5.8% |
245/45-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.9 mph (30.42 km/h) |
| 25 mph (40.23 km/h) | 23.62 mph (38.02 km/h) |
| 30 mph (48.28 km/h) | 28.35 mph (45.62 km/h) |
| 35 mph (56.33 km/h) | 33.07 mph (53.23 km/h) |
| 40 mph (64.37 km/h) | 37.8 mph (60.83 km/h) |
| 45 mph (72.42 km/h) | 42.52 mph (68.43 km/h) |
| 50 mph (80.47 km/h) | 47.25 mph (76.04 km/h) |
| 55 mph (88.51 km/h) | 51.97 mph (83.64 km/h) |
| 60 mph (96.56 km/h) | 56.7 mph (91.25 km/h) |
| 65 mph (104.61 km/h) | 61.42 mph (98.85 km/h) |
| 70 mph (112.65 km/h) | 66.15 mph (106.45 km/h) |
| 75 mph (120.7 km/h) | 70.87 mph (114.06 km/h) |
| 80 mph (128.75 km/h) | 75.6 mph (121.66 km/h) |
| 85 mph (136.79 km/h) | 80.32 mph (129.26 km/h) |
| 90 mph (144.84 km/h) | 85.05 mph (136.87 km/h) |
| 95 mph (152.89 km/h) | 89.77 mph (144.47 km/h) |
| 100 mph (160.93 km/h) | 94.5 mph (152.08 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1999 | 2322 | 2500 | 2611 | 2730 | 2815 | 2908 | 3019 | 3172 | 3325 | 3495 | 3631 | 3878 | 4150 | 4363 | 4499 | 4575 | 4856 | 5247 | 6098 |
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