Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/90-18 | 165/90-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.69 (754.2) | 28.69 (728.8) | -1 (-25.4) -3.4% |
| Width inches (mm) | 6.5 (165) | 6.5 (165) | 0 (0) 0% |
| Circum. inches (mm) | 93.28 (2369.39) | 90.14 (2289.59) | -3.14 (-79.8) -3.4% |
| Sidewall Height inches (mm) | 5.85 (148.5) | 5.85 (148.5) | 0 (0) 0% |
| Revolutions per mile (km) | 679.22 (422.05) | 702.9 (436.76) | 23.67 (14.71) 3.5% |
165/90-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.33 mph (31.1 km/h) |
| 25 mph (40.23 km/h) | 24.16 mph (38.88 km/h) |
| 30 mph (48.28 km/h) | 28.99 mph (46.65 km/h) |
| 35 mph (56.33 km/h) | 33.82 mph (54.43 km/h) |
| 40 mph (64.37 km/h) | 38.65 mph (62.21 km/h) |
| 45 mph (72.42 km/h) | 43.48 mph (69.98 km/h) |
| 50 mph (80.47 km/h) | 48.32 mph (77.76 km/h) |
| 55 mph (88.51 km/h) | 53.15 mph (85.53 km/h) |
| 60 mph (96.56 km/h) | 57.98 mph (93.31 km/h) |
| 65 mph (104.61 km/h) | 62.81 mph (101.08 km/h) |
| 70 mph (112.65 km/h) | 67.64 mph (108.86 km/h) |
| 75 mph (120.7 km/h) | 72.47 mph (116.64 km/h) |
| 80 mph (128.75 km/h) | 77.31 mph (124.41 km/h) |
| 85 mph (136.79 km/h) | 82.14 mph (132.19 km/h) |
| 90 mph (144.84 km/h) | 86.97 mph (139.96 km/h) |
| 95 mph (152.89 km/h) | 91.8 mph (147.74 km/h) |
| 100 mph (160.93 km/h) | 96.63 mph (155.51 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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