Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/90-18 | 155/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.69 (754.2) | 25.54 (648.8) | -4.15 (-105.4) -14% |
| Width inches (mm) | 6.5 (165) | 6.1 (155) | -0.39 (-10) -6.1% |
| Circum. inches (mm) | 93.28 (2369.39) | 80.25 (2038.27) | -13.04 (-331.12) -14% |
| Sidewall Height inches (mm) | 5.85 (148.5) | 4.27 (108.5) | -1.57 (-40) -26.9% |
| Revolutions per mile (km) | 679.22 (422.05) | 789.57 (490.61) | 110.34 (68.56) 16.2% |
155/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.2 mph (27.69 km/h) |
| 25 mph (40.23 km/h) | 21.51 mph (34.61 km/h) |
| 30 mph (48.28 km/h) | 25.81 mph (41.53 km/h) |
| 35 mph (56.33 km/h) | 30.11 mph (48.46 km/h) |
| 40 mph (64.37 km/h) | 34.41 mph (55.38 km/h) |
| 45 mph (72.42 km/h) | 38.71 mph (62.3 km/h) |
| 50 mph (80.47 km/h) | 43.01 mph (69.22 km/h) |
| 55 mph (88.51 km/h) | 47.31 mph (76.14 km/h) |
| 60 mph (96.56 km/h) | 51.61 mph (83.07 km/h) |
| 65 mph (104.61 km/h) | 55.92 mph (89.99 km/h) |
| 70 mph (112.65 km/h) | 60.22 mph (96.91 km/h) |
| 75 mph (120.7 km/h) | 64.52 mph (103.83 km/h) |
| 80 mph (128.75 km/h) | 68.82 mph (110.76 km/h) |
| 85 mph (136.79 km/h) | 73.12 mph (117.68 km/h) |
| 90 mph (144.84 km/h) | 77.42 mph (124.6 km/h) |
| 95 mph (152.89 km/h) | 81.72 mph (131.52 km/h) |
| 100 mph (160.93 km/h) | 86.02 mph (138.44 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2009 | 2334 | 2514 | 2625 | 2745 | 2830 | 2924 | 3035 | 3189 | 3343 | 3514 | 3651 | 3899 | 4172 | 4386 | 4523 | 4600 | 4882 | 5275 | 6130 |
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