Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 280/85-16 | 275/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 34.74 (882.4) | 32.16 (816.8) | -2.58 (-65.6) -7.4% |
| Width inches (mm) | 11.02 (280) | 10.83 (275) | -0.2 (-5) -1.8% |
| Circum. inches (mm) | 109.14 (2772.14) | 101.03 (2566.05) | -8.11 (-206.09) -7.4% |
| Sidewall Height inches (mm) | 9.37 (238) | 7.58 (192.5) | -1.79 (-45.5) -19.1% |
| Revolutions per mile (km) | 580.54 (360.73) | 627.17 (389.7) | 46.63 (28.97) 8% |
275/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.51 mph (29.79 km/h) |
| 25 mph (40.23 km/h) | 23.14 mph (37.24 km/h) |
| 30 mph (48.28 km/h) | 27.77 mph (44.69 km/h) |
| 35 mph (56.33 km/h) | 32.4 mph (52.14 km/h) |
| 40 mph (64.37 km/h) | 37.03 mph (59.59 km/h) |
| 45 mph (72.42 km/h) | 41.65 mph (67.04 km/h) |
| 50 mph (80.47 km/h) | 46.28 mph (74.49 km/h) |
| 55 mph (88.51 km/h) | 50.91 mph (81.93 km/h) |
| 60 mph (96.56 km/h) | 55.54 mph (89.38 km/h) |
| 65 mph (104.61 km/h) | 60.17 mph (96.83 km/h) |
| 70 mph (112.65 km/h) | 64.8 mph (104.28 km/h) |
| 75 mph (120.7 km/h) | 69.42 mph (111.73 km/h) |
| 80 mph (128.75 km/h) | 74.05 mph (119.18 km/h) |
| 85 mph (136.79 km/h) | 78.68 mph (126.62 km/h) |
| 90 mph (144.84 km/h) | 83.31 mph (134.07 km/h) |
| 95 mph (152.89 km/h) | 87.94 mph (141.52 km/h) |
| 100 mph (160.93 km/h) | 92.57 mph (148.97 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1596 | 1854 | 1997 | 2085 | 2180 | 2248 | 2323 | 2411 | 2533 | 2656 | 2791 | 2900 | 3097 | 3314 | 3484 | 3593 | 3654 | 3878 | 4190 | 4870 |
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