Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/80-14 | 185/70-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.13 (587.6) | 24.2 (614.6) | 1.06 (27) 4.6% |
| Width inches (mm) | 5.71 (145) | 7.28 (185) | 1.57 (40) 27.6% |
| Circum. inches (mm) | 72.68 (1846) | 76.02 (1930.82) | 3.34 (84.82) 4.6% |
| Sidewall Height inches (mm) | 4.57 (116) | 5.1 (129.5) | 0.53 (13.5) 11.6% |
| Revolutions per mile (km) | 871.8 (541.71) | 833.5 (517.91) | -38.3 (-23.8) -4.4% |
185/70-14 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.92 mph (33.67 km/h) |
| 25 mph (40.23 km/h) | 26.15 mph (42.08 km/h) |
| 30 mph (48.28 km/h) | 31.38 mph (50.5 km/h) |
| 35 mph (56.33 km/h) | 36.61 mph (58.92 km/h) |
| 40 mph (64.37 km/h) | 41.84 mph (67.33 km/h) |
| 45 mph (72.42 km/h) | 47.07 mph (75.75 km/h) |
| 50 mph (80.47 km/h) | 52.3 mph (84.16 km/h) |
| 55 mph (88.51 km/h) | 57.53 mph (92.58 km/h) |
| 60 mph (96.56 km/h) | 62.76 mph (101 km/h) |
| 65 mph (104.61 km/h) | 67.99 mph (109.41 km/h) |
| 70 mph (112.65 km/h) | 73.22 mph (117.83 km/h) |
| 75 mph (120.7 km/h) | 78.45 mph (126.25 km/h) |
| 80 mph (128.75 km/h) | 83.68 mph (134.66 km/h) |
| 85 mph (136.79 km/h) | 88.91 mph (143.08 km/h) |
| 90 mph (144.84 km/h) | 94.14 mph (151.5 km/h) |
| 95 mph (152.89 km/h) | 99.37 mph (159.91 km/h) |
| 100 mph (160.93 km/h) | 104.59 mph (168.33 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 |
Better Fuel Economy Factory Ratios Increased Power
