Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/90-16 | 155/90-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.28 (667.4) | 27.98 (710.8) | 1.71 (43.4) 6.5% |
| Width inches (mm) | 5.71 (145) | 6.1 (155) | 0.39 (10) 6.9% |
| Circum. inches (mm) | 82.55 (2096.7) | 87.92 (2233.04) | 5.37 (136.35) 6.5% |
| Sidewall Height inches (mm) | 5.14 (130.5) | 5.49 (139.5) | 0.35 (9) 6.9% |
| Revolutions per mile (km) | 767.56 (476.94) | 720.7 (447.82) | -46.87 (-29.12) -6.1% |
155/90-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.3 mph (34.28 km/h) |
| 25 mph (40.23 km/h) | 26.63 mph (42.85 km/h) |
| 30 mph (48.28 km/h) | 31.95 mph (51.42 km/h) |
| 35 mph (56.33 km/h) | 37.28 mph (59.99 km/h) |
| 40 mph (64.37 km/h) | 42.6 mph (68.56 km/h) |
| 45 mph (72.42 km/h) | 47.93 mph (77.13 km/h) |
| 50 mph (80.47 km/h) | 53.25 mph (85.7 km/h) |
| 55 mph (88.51 km/h) | 58.58 mph (94.27 km/h) |
| 60 mph (96.56 km/h) | 63.9 mph (102.84 km/h) |
| 65 mph (104.61 km/h) | 69.23 mph (111.41 km/h) |
| 70 mph (112.65 km/h) | 74.55 mph (119.98 km/h) |
| 75 mph (120.7 km/h) | 79.88 mph (128.55 km/h) |
| 80 mph (128.75 km/h) | 85.2 mph (137.12 km/h) |
| 85 mph (136.79 km/h) | 90.53 mph (145.69 km/h) |
| 90 mph (144.84 km/h) | 95.85 mph (154.26 km/h) |
| 95 mph (152.89 km/h) | 101.18 mph (162.83 km/h) |
| 100 mph (160.93 km/h) | 106.5 mph (171.4 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1834 | 2131 | 2294 | 2396 | 2505 | 2583 | 2669 | 2771 | 2911 | 3052 | 3208 | 3332 | 3559 | 3809 | 4004 | 4129 | 4199 | 4456 | 4815 | 5596 |
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