Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/80-18 | 165/90-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.5 (673.2) | 28.69 (728.8) | 2.19 (55.6) 8.3% |
| Width inches (mm) | 5.31 (135) | 6.5 (165) | 1.18 (30) 22.2% |
| Circum. inches (mm) | 83.26 (2114.92) | 90.14 (2289.59) | 6.88 (174.67) 8.3% |
| Sidewall Height inches (mm) | 4.25 (108) | 5.85 (148.5) | 1.59 (40.5) 37.5% |
| Revolutions per mile (km) | 760.95 (472.83) | 702.9 (436.76) | -58.05 (-36.07) -7.6% |
165/90-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.65 mph (34.85 km/h) |
| 25 mph (40.23 km/h) | 27.06 mph (43.56 km/h) |
| 30 mph (48.28 km/h) | 32.48 mph (52.27 km/h) |
| 35 mph (56.33 km/h) | 37.89 mph (60.98 km/h) |
| 40 mph (64.37 km/h) | 43.3 mph (69.69 km/h) |
| 45 mph (72.42 km/h) | 48.72 mph (78.4 km/h) |
| 50 mph (80.47 km/h) | 54.13 mph (87.11 km/h) |
| 55 mph (88.51 km/h) | 59.54 mph (95.82 km/h) |
| 60 mph (96.56 km/h) | 64.96 mph (104.54 km/h) |
| 65 mph (104.61 km/h) | 70.37 mph (113.25 km/h) |
| 70 mph (112.65 km/h) | 75.78 mph (121.96 km/h) |
| 75 mph (120.7 km/h) | 81.19 mph (130.67 km/h) |
| 80 mph (128.75 km/h) | 86.61 mph (139.38 km/h) |
| 85 mph (136.79 km/h) | 92.02 mph (148.09 km/h) |
| 90 mph (144.84 km/h) | 97.43 mph (156.8 km/h) |
| 95 mph (152.89 km/h) | 102.85 mph (165.52 km/h) |
| 100 mph (160.93 km/h) | 108.26 mph (174.23 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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