Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/70-17 | 155/80-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.99 (634.8) | 26.76 (679.8) | 1.77 (45) 7.1% |
| Width inches (mm) | 5.71 (145) | 6.1 (155) | 0.39 (10) 6.9% |
| Circum. inches (mm) | 78.52 (1994.28) | 84.08 (2135.65) | 5.57 (141.37) 7.1% |
| Sidewall Height inches (mm) | 4 (101.5) | 4.88 (124) | 0.89 (22.5) 22.2% |
| Revolutions per mile (km) | 806.98 (501.43) | 753.56 (468.24) | -53.42 (-33.19) -6.6% |
155/80-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.42 mph (34.47 km/h) |
| 25 mph (40.23 km/h) | 26.77 mph (43.09 km/h) |
| 30 mph (48.28 km/h) | 32.13 mph (51.7 km/h) |
| 35 mph (56.33 km/h) | 37.48 mph (60.32 km/h) |
| 40 mph (64.37 km/h) | 42.84 mph (68.94 km/h) |
| 45 mph (72.42 km/h) | 48.19 mph (77.55 km/h) |
| 50 mph (80.47 km/h) | 53.54 mph (86.17 km/h) |
| 55 mph (88.51 km/h) | 58.9 mph (94.79 km/h) |
| 60 mph (96.56 km/h) | 64.25 mph (103.41 km/h) |
| 65 mph (104.61 km/h) | 69.61 mph (112.02 km/h) |
| 70 mph (112.65 km/h) | 74.96 mph (120.64 km/h) |
| 75 mph (120.7 km/h) | 80.32 mph (129.26 km/h) |
| 80 mph (128.75 km/h) | 85.67 mph (137.87 km/h) |
| 85 mph (136.79 km/h) | 91.03 mph (146.49 km/h) |
| 90 mph (144.84 km/h) | 96.38 mph (155.11 km/h) |
| 95 mph (152.89 km/h) | 101.73 mph (163.73 km/h) |
| 100 mph (160.93 km/h) | 107.09 mph (172.34 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1918 | 2228 | 2399 | 2505 | 2619 | 2701 | 2791 | 2897 | 3044 | 3191 | 3354 | 3484 | 3721 | 3982 | 4186 | 4317 | 4390 | 4660 | 5035 | 5851 |
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