Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/75-17 | 235/80-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.06 (814.3) | 31.8 (807.8) | -0.26 (-6.5) -0.8% |
| Width inches (mm) | 10.04 (255) | 9.25 (235) | -0.79 (-20) -7.8% |
| Circum. inches (mm) | 100.72 (2558.2) | 99.91 (2537.78) | -0.8 (-20.42) -0.8% |
| Sidewall Height inches (mm) | 7.53 (191.25) | 7.4 (188) | -0.13 (-3.25) -1.7% |
| Revolutions per mile (km) | 629.09 (390.9) | 634.15 (394.04) | 5.06 (3.15) 0.8% |
235/80-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.84 mph (31.93 km/h) |
| 25 mph (40.23 km/h) | 24.8 mph (39.91 km/h) |
| 30 mph (48.28 km/h) | 29.76 mph (47.9 km/h) |
| 35 mph (56.33 km/h) | 34.72 mph (55.88 km/h) |
| 40 mph (64.37 km/h) | 39.68 mph (63.86 km/h) |
| 45 mph (72.42 km/h) | 44.64 mph (71.84 km/h) |
| 50 mph (80.47 km/h) | 49.6 mph (79.83 km/h) |
| 55 mph (88.51 km/h) | 54.56 mph (87.81 km/h) |
| 60 mph (96.56 km/h) | 59.52 mph (95.79 km/h) |
| 65 mph (104.61 km/h) | 64.48 mph (103.77 km/h) |
| 70 mph (112.65 km/h) | 69.44 mph (111.76 km/h) |
| 75 mph (120.7 km/h) | 74.4 mph (119.74 km/h) |
| 80 mph (128.75 km/h) | 79.36 mph (127.72 km/h) |
| 85 mph (136.79 km/h) | 84.32 mph (135.7 km/h) |
| 90 mph (144.84 km/h) | 89.28 mph (143.69 km/h) |
| 95 mph (152.89 km/h) | 94.24 mph (151.67 km/h) |
| 100 mph (160.93 km/h) | 99.2 mph (159.65 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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