Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/85-17 | 235/80-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 34.07 (865.3) | 31.8 (807.8) | -2.26 (-57.5) -6.6% |
| Width inches (mm) | 10.04 (255) | 9.25 (235) | -0.79 (-20) -7.8% |
| Circum. inches (mm) | 107.02 (2718.42) | 99.91 (2537.78) | -7.11 (-180.64) -6.6% |
| Sidewall Height inches (mm) | 8.53 (216.75) | 7.4 (188) | -1.13 (-28.75) -13.3% |
| Revolutions per mile (km) | 592.01 (367.86) | 634.15 (394.04) | 42.14 (26.18) 7.1% |
235/80-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.67 mph (30.05 km/h) |
| 25 mph (40.23 km/h) | 23.34 mph (37.56 km/h) |
| 30 mph (48.28 km/h) | 28.01 mph (45.07 km/h) |
| 35 mph (56.33 km/h) | 32.67 mph (52.58 km/h) |
| 40 mph (64.37 km/h) | 37.34 mph (60.1 km/h) |
| 45 mph (72.42 km/h) | 42.01 mph (67.61 km/h) |
| 50 mph (80.47 km/h) | 46.68 mph (75.12 km/h) |
| 55 mph (88.51 km/h) | 51.35 mph (82.63 km/h) |
| 60 mph (96.56 km/h) | 56.01 mph (90.14 km/h) |
| 65 mph (104.61 km/h) | 60.68 mph (97.66 km/h) |
| 70 mph (112.65 km/h) | 65.35 mph (105.17 km/h) |
| 75 mph (120.7 km/h) | 70.02 mph (112.68 km/h) |
| 80 mph (128.75 km/h) | 74.68 mph (120.19 km/h) |
| 85 mph (136.79 km/h) | 79.35 mph (127.7 km/h) |
| 90 mph (144.84 km/h) | 84.02 mph (135.22 km/h) |
| 95 mph (152.89 km/h) | 88.69 mph (142.73 km/h) |
| 100 mph (160.93 km/h) | 93.35 mph (150.24 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1614 | 1875 | 2019 | 2108 | 2204 | 2273 | 2349 | 2438 | 2561 | 2685 | 2822 | 2932 | 3131 | 3351 | 3523 | 3633 | 3695 | 3921 | 4237 | 4924 |
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