Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/70-17 | 255/65-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.06 (788.8) | 30.05 (763.3) | -1 (-25.5) -3.2% |
| Width inches (mm) | 10.04 (255) | 10.04 (255) | 0 (0) 0% |
| Circum. inches (mm) | 97.56 (2478.09) | 94.41 (2397.98) | -3.15 (-80.11) -3.2% |
| Sidewall Height inches (mm) | 7.03 (178.5) | 6.53 (165.75) | -0.5 (-12.75) -7.1% |
| Revolutions per mile (km) | 649.43 (403.54) | 671.13 (417.02) | 21.7 (13.48) 3.3% |
255/65-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.35 mph (31.15 km/h) |
| 25 mph (40.23 km/h) | 24.19 mph (38.93 km/h) |
| 30 mph (48.28 km/h) | 29.03 mph (46.72 km/h) |
| 35 mph (56.33 km/h) | 33.87 mph (54.51 km/h) |
| 40 mph (64.37 km/h) | 38.71 mph (62.29 km/h) |
| 45 mph (72.42 km/h) | 43.55 mph (70.08 km/h) |
| 50 mph (80.47 km/h) | 48.38 mph (77.87 km/h) |
| 55 mph (88.51 km/h) | 53.22 mph (85.65 km/h) |
| 60 mph (96.56 km/h) | 58.06 mph (93.44 km/h) |
| 65 mph (104.61 km/h) | 62.9 mph (101.23 km/h) |
| 70 mph (112.65 km/h) | 67.74 mph (109.01 km/h) |
| 75 mph (120.7 km/h) | 72.58 mph (116.8 km/h) |
| 80 mph (128.75 km/h) | 77.41 mph (124.59 km/h) |
| 85 mph (136.79 km/h) | 82.25 mph (132.37 km/h) |
| 90 mph (144.84 km/h) | 87.09 mph (140.16 km/h) |
| 95 mph (152.89 km/h) | 91.93 mph (147.95 km/h) |
| 100 mph (160.93 km/h) | 96.77 mph (155.73 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1708 | 1984 | 2137 | 2231 | 2333 | 2406 | 2486 | 2580 | 2711 | 2842 | 2987 | 3103 | 3314 | 3547 | 3728 | 3845 | 3910 | 4150 | 4484 | 5211 |
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