Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/40-17 | 235/55-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.03 (635.8) | 27.18 (690.3) | 2.15 (54.5) 8.6% |
| Width inches (mm) | 10.04 (255) | 9.25 (235) | -0.79 (-20) -7.8% |
| Circum. inches (mm) | 78.64 (1997.42) | 85.38 (2168.64) | 6.74 (171.22) 8.6% |
| Sidewall Height inches (mm) | 4.02 (102) | 5.09 (129.25) | 1.07 (27.25) 26.7% |
| Revolutions per mile (km) | 805.71 (500.64) | 742.1 (461.12) | -63.61 (-39.53) -7.9% |
235/55-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.71 mph (34.95 km/h) |
| 25 mph (40.23 km/h) | 27.14 mph (43.68 km/h) |
| 30 mph (48.28 km/h) | 32.57 mph (52.42 km/h) |
| 35 mph (56.33 km/h) | 38 mph (61.16 km/h) |
| 40 mph (64.37 km/h) | 43.43 mph (69.89 km/h) |
| 45 mph (72.42 km/h) | 48.86 mph (78.63 km/h) |
| 50 mph (80.47 km/h) | 54.29 mph (87.36 km/h) |
| 55 mph (88.51 km/h) | 59.71 mph (96.1 km/h) |
| 60 mph (96.56 km/h) | 65.14 mph (104.84 km/h) |
| 65 mph (104.61 km/h) | 70.57 mph (113.57 km/h) |
| 70 mph (112.65 km/h) | 76 mph (122.31 km/h) |
| 75 mph (120.7 km/h) | 81.43 mph (131.05 km/h) |
| 80 mph (128.75 km/h) | 86.86 mph (139.78 km/h) |
| 85 mph (136.79 km/h) | 92.29 mph (148.52 km/h) |
| 90 mph (144.84 km/h) | 97.71 mph (157.26 km/h) |
| 95 mph (152.89 km/h) | 103.14 mph (165.99 km/h) |
| 100 mph (160.93 km/h) | 108.57 mph (174.73 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1888 | 2194 | 2363 | 2467 | 2580 | 2660 | 2748 | 2853 | 2997 | 3142 | 3303 | 3431 | 3664 | 3922 | 4123 | 4251 | 4323 | 4589 | 4958 | 5762 |
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