Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/80-17 | 165/80-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.87 (631.8) | 27.39 (695.8) | 2.52 (64) 10.1% |
| Width inches (mm) | 4.92 (125) | 6.5 (165) | 1.57 (40) 32% |
| Circum. inches (mm) | 78.14 (1984.86) | 86.06 (2185.92) | 7.92 (201.06) 10.1% |
| Sidewall Height inches (mm) | 3.94 (100) | 5.2 (132) | 1.26 (32) 32% |
| Revolutions per mile (km) | 810.81 (503.81) | 736.23 (457.47) | -74.58 (-46.34) -9.2% |
165/80-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.03 mph (35.45 km/h) |
| 25 mph (40.23 km/h) | 27.53 mph (44.31 km/h) |
| 30 mph (48.28 km/h) | 33.04 mph (53.17 km/h) |
| 35 mph (56.33 km/h) | 38.55 mph (62.03 km/h) |
| 40 mph (64.37 km/h) | 44.05 mph (70.89 km/h) |
| 45 mph (72.42 km/h) | 49.56 mph (79.76 km/h) |
| 50 mph (80.47 km/h) | 55.06 mph (88.62 km/h) |
| 55 mph (88.51 km/h) | 60.57 mph (97.48 km/h) |
| 60 mph (96.56 km/h) | 66.08 mph (106.34 km/h) |
| 65 mph (104.61 km/h) | 71.58 mph (115.2 km/h) |
| 70 mph (112.65 km/h) | 77.09 mph (124.07 km/h) |
| 75 mph (120.7 km/h) | 82.6 mph (132.93 km/h) |
| 80 mph (128.75 km/h) | 88.1 mph (141.79 km/h) |
| 85 mph (136.79 km/h) | 93.61 mph (150.65 km/h) |
| 90 mph (144.84 km/h) | 99.12 mph (159.51 km/h) |
| 95 mph (152.89 km/h) | 104.62 mph (168.38 km/h) |
| 100 mph (160.93 km/h) | 110.13 mph (177.24 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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