Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/80-17 | 165/90-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.13 (663.8) | 28.69 (728.8) | 2.56 (65) 9.8% |
| Width inches (mm) | 5.71 (145) | 6.5 (165) | 0.79 (20) 13.8% |
| Circum. inches (mm) | 82.1 (2085.39) | 90.14 (2289.59) | 8.04 (204.2) 9.8% |
| Sidewall Height inches (mm) | 4.57 (116) | 5.85 (148.5) | 1.28 (32.5) 28% |
| Revolutions per mile (km) | 771.72 (479.53) | 702.9 (436.76) | -68.83 (-42.77) -8.9% |
165/90-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.96 mph (35.34 km/h) |
| 25 mph (40.23 km/h) | 27.45 mph (44.17 km/h) |
| 30 mph (48.28 km/h) | 32.94 mph (53.01 km/h) |
| 35 mph (56.33 km/h) | 38.43 mph (61.84 km/h) |
| 40 mph (64.37 km/h) | 43.92 mph (70.68 km/h) |
| 45 mph (72.42 km/h) | 49.41 mph (79.51 km/h) |
| 50 mph (80.47 km/h) | 54.9 mph (88.35 km/h) |
| 55 mph (88.51 km/h) | 60.39 mph (97.18 km/h) |
| 60 mph (96.56 km/h) | 65.88 mph (106.02 km/h) |
| 65 mph (104.61 km/h) | 71.36 mph (114.85 km/h) |
| 70 mph (112.65 km/h) | 76.85 mph (123.69 km/h) |
| 75 mph (120.7 km/h) | 82.34 mph (132.52 km/h) |
| 80 mph (128.75 km/h) | 87.83 mph (141.35 km/h) |
| 85 mph (136.79 km/h) | 93.32 mph (150.19 km/h) |
| 90 mph (144.84 km/h) | 98.81 mph (159.02 km/h) |
| 95 mph (152.89 km/h) | 104.3 mph (167.86 km/h) |
| 100 mph (160.93 km/h) | 109.79 mph (176.69 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1789 | 2078 | 2238 | 2337 | 2443 | 2519 | 2603 | 2702 | 2839 | 2976 | 3128 | 3250 | 3471 | 3714 | 3905 | 4027 | 4095 | 4346 | 4696 | 5458 |
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