Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/70-17 | 165/80-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.99 (634.8) | 27.39 (695.8) | 2.4 (61) 9.6% |
| Width inches (mm) | 5.71 (145) | 6.5 (165) | 0.79 (20) 13.8% |
| Circum. inches (mm) | 78.52 (1994.28) | 86.06 (2185.92) | 7.54 (191.64) 9.6% |
| Sidewall Height inches (mm) | 4 (101.5) | 5.2 (132) | 1.2 (30.5) 30% |
| Revolutions per mile (km) | 806.98 (501.43) | 736.23 (457.47) | -70.75 (-43.96) -8.8% |
165/80-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.92 mph (35.28 km/h) |
| 25 mph (40.23 km/h) | 27.4 mph (44.1 km/h) |
| 30 mph (48.28 km/h) | 32.88 mph (52.92 km/h) |
| 35 mph (56.33 km/h) | 38.36 mph (61.74 km/h) |
| 40 mph (64.37 km/h) | 43.84 mph (70.56 km/h) |
| 45 mph (72.42 km/h) | 49.32 mph (79.38 km/h) |
| 50 mph (80.47 km/h) | 54.8 mph (88.2 km/h) |
| 55 mph (88.51 km/h) | 60.29 mph (97.02 km/h) |
| 60 mph (96.56 km/h) | 65.77 mph (105.84 km/h) |
| 65 mph (104.61 km/h) | 71.25 mph (114.66 km/h) |
| 70 mph (112.65 km/h) | 76.73 mph (123.48 km/h) |
| 75 mph (120.7 km/h) | 82.21 mph (132.3 km/h) |
| 80 mph (128.75 km/h) | 87.69 mph (141.12 km/h) |
| 85 mph (136.79 km/h) | 93.17 mph (149.94 km/h) |
| 90 mph (144.84 km/h) | 98.65 mph (158.76 km/h) |
| 95 mph (152.89 km/h) | 104.13 mph (167.58 km/h) |
| 100 mph (160.93 km/h) | 109.61 mph (176.4 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1874 | 2177 | 2344 | 2448 | 2559 | 2639 | 2727 | 2830 | 2974 | 3117 | 3277 | 3404 | 3636 | 3891 | 4090 | 4218 | 4289 | 4552 | 4919 | 5716 |
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