Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 195/65-15 | 185/70-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.98 (634.5) | 24.2 (614.6) | -0.78 (-19.9) -3.1% |
| Width inches (mm) | 7.68 (195) | 7.28 (185) | -0.39 (-10) -5.1% |
| Circum. inches (mm) | 78.48 (1993.34) | 76.02 (1930.82) | -2.46 (-62.52) -3.1% |
| Sidewall Height inches (mm) | 4.99 (126.75) | 5.1 (129.5) | 0.11 (2.75) 2.2% |
| Revolutions per mile (km) | 807.36 (501.67) | 833.5 (517.91) | 26.14 (16.24) 3.2% |
185/70-14 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.37 mph (31.18 km/h) |
| 25 mph (40.23 km/h) | 24.22 mph (38.97 km/h) |
| 30 mph (48.28 km/h) | 29.06 mph (46.77 km/h) |
| 35 mph (56.33 km/h) | 33.9 mph (54.56 km/h) |
| 40 mph (64.37 km/h) | 38.75 mph (62.35 km/h) |
| 45 mph (72.42 km/h) | 43.59 mph (70.15 km/h) |
| 50 mph (80.47 km/h) | 48.43 mph (77.94 km/h) |
| 55 mph (88.51 km/h) | 53.28 mph (85.74 km/h) |
| 60 mph (96.56 km/h) | 58.12 mph (93.53 km/h) |
| 65 mph (104.61 km/h) | 62.96 mph (101.33 km/h) |
| 70 mph (112.65 km/h) | 67.8 mph (109.12 km/h) |
| 75 mph (120.7 km/h) | 72.65 mph (116.92 km/h) |
| 80 mph (128.75 km/h) | 77.49 mph (124.71 km/h) |
| 85 mph (136.79 km/h) | 82.33 mph (132.5 km/h) |
| 90 mph (144.84 km/h) | 87.18 mph (140.3 km/h) |
| 95 mph (152.89 km/h) | 92.02 mph (148.09 km/h) |
| 100 mph (160.93 km/h) | 96.86 mph (155.89 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
