Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/80-13 | 185/70-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.02 (610.2) | 24.2 (614.6) | 0.17 (4.4) 0.7% |
| Width inches (mm) | 6.89 (175) | 7.28 (185) | 0.39 (10) 5.7% |
| Circum. inches (mm) | 75.47 (1917) | 76.02 (1930.82) | 0.54 (13.82) 0.7% |
| Sidewall Height inches (mm) | 5.51 (140) | 5.1 (129.5) | -0.41 (-10.5) -7.5% |
| Revolutions per mile (km) | 839.51 (521.65) | 833.5 (517.91) | -6.01 (-3.73) -0.7% |
185/70-14 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.14 mph (32.42 km/h) |
| 25 mph (40.23 km/h) | 25.18 mph (40.52 km/h) |
| 30 mph (48.28 km/h) | 30.22 mph (48.63 km/h) |
| 35 mph (56.33 km/h) | 35.25 mph (56.73 km/h) |
| 40 mph (64.37 km/h) | 40.29 mph (64.84 km/h) |
| 45 mph (72.42 km/h) | 45.32 mph (72.94 km/h) |
| 50 mph (80.47 km/h) | 50.36 mph (81.05 km/h) |
| 55 mph (88.51 km/h) | 55.4 mph (89.15 km/h) |
| 60 mph (96.56 km/h) | 60.43 mph (97.26 km/h) |
| 65 mph (104.61 km/h) | 65.47 mph (105.36 km/h) |
| 70 mph (112.65 km/h) | 70.5 mph (113.47 km/h) |
| 75 mph (120.7 km/h) | 75.54 mph (121.57 km/h) |
| 80 mph (128.75 km/h) | 80.58 mph (129.68 km/h) |
| 85 mph (136.79 km/h) | 85.61 mph (137.78 km/h) |
| 90 mph (144.84 km/h) | 90.65 mph (145.89 km/h) |
| 95 mph (152.89 km/h) | 95.69 mph (153.99 km/h) |
| 100 mph (160.93 km/h) | 100.72 mph (162.1 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2121 | 2464 | 2654 | 2771 | 2897 | 2988 | 3087 | 3204 | 3367 | 3529 | 3710 | 3854 | 4116 | 4405 | 4630 | 4775 | 4856 | 5154 | 5569 | 6472 |
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