Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/60-15 | 185/70-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.27 (591) | 24.2 (614.6) | 0.93 (23.6) 4% |
| Width inches (mm) | 6.89 (175) | 7.28 (185) | 0.39 (10) 5.7% |
| Circum. inches (mm) | 73.1 (1856.68) | 76.02 (1930.82) | 2.92 (74.14) 4% |
| Sidewall Height inches (mm) | 4.13 (105) | 5.1 (129.5) | 0.96 (24.5) 23.3% |
| Revolutions per mile (km) | 866.79 (538.59) | 833.5 (517.91) | -33.28 (-20.68) -3.8% |
185/70-14 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.8 mph (33.47 km/h) |
| 25 mph (40.23 km/h) | 26 mph (41.84 km/h) |
| 30 mph (48.28 km/h) | 31.2 mph (50.21 km/h) |
| 35 mph (56.33 km/h) | 36.4 mph (58.58 km/h) |
| 40 mph (64.37 km/h) | 41.6 mph (66.94 km/h) |
| 45 mph (72.42 km/h) | 46.8 mph (75.31 km/h) |
| 50 mph (80.47 km/h) | 52 mph (83.68 km/h) |
| 55 mph (88.51 km/h) | 57.2 mph (92.05 km/h) |
| 60 mph (96.56 km/h) | 62.4 mph (100.42 km/h) |
| 65 mph (104.61 km/h) | 67.6 mph (108.78 km/h) |
| 70 mph (112.65 km/h) | 72.8 mph (117.15 km/h) |
| 75 mph (120.7 km/h) | 77.99 mph (125.52 km/h) |
| 80 mph (128.75 km/h) | 83.19 mph (133.89 km/h) |
| 85 mph (136.79 km/h) | 88.39 mph (142.26 km/h) |
| 90 mph (144.84 km/h) | 93.59 mph (150.63 km/h) |
| 95 mph (152.89 km/h) | 98.79 mph (158.99 km/h) |
| 100 mph (160.93 km/h) | 103.99 mph (167.36 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
