Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 270/60-17 | 255/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.76 (755.8) | 31.06 (788.8) | 1.3 (33) 4.4% |
| Width inches (mm) | 10.63 (270) | 10.04 (255) | -0.59 (-15) -5.6% |
| Circum. inches (mm) | 93.48 (2374.42) | 97.56 (2478.09) | 4.08 (103.67) 4.4% |
| Sidewall Height inches (mm) | 6.38 (162) | 7.03 (178.5) | 0.65 (16.5) 10.2% |
| Revolutions per mile (km) | 677.79 (421.16) | 649.43 (403.54) | -28.36 (-17.62) -4.2% |
255/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.87 mph (33.59 km/h) |
| 25 mph (40.23 km/h) | 26.09 mph (41.99 km/h) |
| 30 mph (48.28 km/h) | 31.31 mph (50.39 km/h) |
| 35 mph (56.33 km/h) | 36.53 mph (58.79 km/h) |
| 40 mph (64.37 km/h) | 41.75 mph (67.18 km/h) |
| 45 mph (72.42 km/h) | 46.96 mph (75.58 km/h) |
| 50 mph (80.47 km/h) | 52.18 mph (83.98 km/h) |
| 55 mph (88.51 km/h) | 57.4 mph (92.38 km/h) |
| 60 mph (96.56 km/h) | 62.62 mph (100.78 km/h) |
| 65 mph (104.61 km/h) | 67.84 mph (109.17 km/h) |
| 70 mph (112.65 km/h) | 73.06 mph (117.57 km/h) |
| 75 mph (120.7 km/h) | 78.27 mph (125.97 km/h) |
| 80 mph (128.75 km/h) | 83.49 mph (134.37 km/h) |
| 85 mph (136.79 km/h) | 88.71 mph (142.77 km/h) |
| 90 mph (144.84 km/h) | 93.93 mph (151.17 km/h) |
| 95 mph (152.89 km/h) | 99.15 mph (159.56 km/h) |
| 100 mph (160.93 km/h) | 104.37 mph (167.96 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1653 | 1920 | 2068 | 2159 | 2257 | 2328 | 2405 | 2497 | 2623 | 2750 | 2890 | 3003 | 3207 | 3432 | 3608 | 3720 | 3784 | 4016 | 4339 | 5042 |
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