Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/70-14 | 185/70-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.54 (572.6) | 24.2 (614.6) | 1.65 (42) 7.3% |
| Width inches (mm) | 6.1 (155) | 7.28 (185) | 1.18 (30) 19.4% |
| Circum. inches (mm) | 70.82 (1798.88) | 76.02 (1930.82) | 5.19 (131.95) 7.3% |
| Sidewall Height inches (mm) | 4.27 (108.5) | 5.1 (129.5) | 0.83 (21) 19.4% |
| Revolutions per mile (km) | 894.64 (555.9) | 833.5 (517.91) | -61.14 (-37.99) -6.8% |
185/70-14 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.47 mph (34.55 km/h) |
| 25 mph (40.23 km/h) | 26.83 mph (43.18 km/h) |
| 30 mph (48.28 km/h) | 32.2 mph (51.82 km/h) |
| 35 mph (56.33 km/h) | 37.57 mph (60.46 km/h) |
| 40 mph (64.37 km/h) | 42.93 mph (69.1 km/h) |
| 45 mph (72.42 km/h) | 48.3 mph (77.73 km/h) |
| 50 mph (80.47 km/h) | 53.67 mph (86.37 km/h) |
| 55 mph (88.51 km/h) | 59.03 mph (95.01 km/h) |
| 60 mph (96.56 km/h) | 64.4 mph (103.64 km/h) |
| 65 mph (104.61 km/h) | 69.77 mph (112.28 km/h) |
| 70 mph (112.65 km/h) | 75.13 mph (120.92 km/h) |
| 75 mph (120.7 km/h) | 80.5 mph (129.55 km/h) |
| 80 mph (128.75 km/h) | 85.87 mph (138.19 km/h) |
| 85 mph (136.79 km/h) | 91.23 mph (146.83 km/h) |
| 90 mph (144.84 km/h) | 96.6 mph (155.47 km/h) |
| 95 mph (152.89 km/h) | 101.97 mph (164.1 km/h) |
| 100 mph (160.93 km/h) | 107.33 mph (172.74 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
