Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 205/80-12 | 185/70-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.91 (632.8) | 24.2 (614.6) | -0.72 (-18.2) -2.9% |
| Width inches (mm) | 8.07 (205) | 7.28 (185) | -0.79 (-20) -9.8% |
| Circum. inches (mm) | 78.27 (1988) | 76.02 (1930.82) | -2.25 (-57.18) -2.9% |
| Sidewall Height inches (mm) | 6.46 (164) | 5.1 (129.5) | -1.36 (-34.5) -21% |
| Revolutions per mile (km) | 809.53 (503.02) | 833.5 (517.91) | 23.97 (14.9) 3% |
185/70-14 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.42 mph (31.26 km/h) |
| 25 mph (40.23 km/h) | 24.28 mph (39.08 km/h) |
| 30 mph (48.28 km/h) | 29.14 mph (46.89 km/h) |
| 35 mph (56.33 km/h) | 33.99 mph (54.71 km/h) |
| 40 mph (64.37 km/h) | 38.85 mph (62.52 km/h) |
| 45 mph (72.42 km/h) | 43.71 mph (70.34 km/h) |
| 50 mph (80.47 km/h) | 48.56 mph (78.15 km/h) |
| 55 mph (88.51 km/h) | 53.42 mph (85.97 km/h) |
| 60 mph (96.56 km/h) | 58.27 mph (93.78 km/h) |
| 65 mph (104.61 km/h) | 63.13 mph (101.6 km/h) |
| 70 mph (112.65 km/h) | 67.99 mph (109.41 km/h) |
| 75 mph (120.7 km/h) | 72.84 mph (117.23 km/h) |
| 80 mph (128.75 km/h) | 77.7 mph (125.04 km/h) |
| 85 mph (136.79 km/h) | 82.56 mph (132.86 km/h) |
| 90 mph (144.84 km/h) | 87.41 mph (140.68 km/h) |
| 95 mph (152.89 km/h) | 92.27 mph (148.49 km/h) |
| 100 mph (160.93 km/h) | 97.12 mph (156.31 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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