Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/82-15 | 185/70-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.65 (651.6) | 24.2 (614.6) | -1.46 (-37) -5.7% |
| Width inches (mm) | 6.5 (165) | 7.28 (185) | 0.79 (20) 12.1% |
| Circum. inches (mm) | 80.59 (2047.06) | 76.02 (1930.82) | -4.58 (-116.24) -5.7% |
| Sidewall Height inches (mm) | 5.33 (135.3) | 5.1 (129.5) | -0.23 (-5.8) -4.3% |
| Revolutions per mile (km) | 786.17 (488.5) | 833.5 (517.91) | 47.33 (29.41) 6% |
185/70-14 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.86 mph (30.36 km/h) |
| 25 mph (40.23 km/h) | 23.58 mph (37.95 km/h) |
| 30 mph (48.28 km/h) | 28.3 mph (45.54 km/h) |
| 35 mph (56.33 km/h) | 33.01 mph (53.13 km/h) |
| 40 mph (64.37 km/h) | 37.73 mph (60.72 km/h) |
| 45 mph (72.42 km/h) | 42.44 mph (68.31 km/h) |
| 50 mph (80.47 km/h) | 47.16 mph (75.9 km/h) |
| 55 mph (88.51 km/h) | 51.88 mph (83.49 km/h) |
| 60 mph (96.56 km/h) | 56.59 mph (91.08 km/h) |
| 65 mph (104.61 km/h) | 61.31 mph (98.67 km/h) |
| 70 mph (112.65 km/h) | 66.03 mph (106.26 km/h) |
| 75 mph (120.7 km/h) | 70.74 mph (113.85 km/h) |
| 80 mph (128.75 km/h) | 75.46 mph (121.44 km/h) |
| 85 mph (136.79 km/h) | 80.17 mph (129.03 km/h) |
| 90 mph (144.84 km/h) | 84.89 mph (136.62 km/h) |
| 95 mph (152.89 km/h) | 89.61 mph (144.21 km/h) |
| 100 mph (160.93 km/h) | 94.32 mph (151.8 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
