Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 26/12-12 | 185/70-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.93 (658.6) | 24.2 (614.6) | -1.73 (-44) -6.7% |
| Width inches (mm) | 12.01 (305) | 7.28 (185) | -4.72 (-120) -39.3% |
| Circum. inches (mm) | 81.46 (2069.05) | 76.02 (1930.82) | -5.44 (-138.23) -6.7% |
| Sidewall Height inches (mm) | 6.96 (176.9) | 5.1 (129.5) | -1.87 (-47.4) -26.8% |
| Revolutions per mile (km) | 777.82 (483.31) | 833.5 (517.91) | 55.68 (34.6) 7.2% |
185/70-14 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.66 mph (30.04 km/h) |
| 25 mph (40.23 km/h) | 23.33 mph (37.55 km/h) |
| 30 mph (48.28 km/h) | 28 mph (45.05 km/h) |
| 35 mph (56.33 km/h) | 32.66 mph (52.56 km/h) |
| 40 mph (64.37 km/h) | 37.33 mph (60.07 km/h) |
| 45 mph (72.42 km/h) | 41.99 mph (67.58 km/h) |
| 50 mph (80.47 km/h) | 46.66 mph (75.09 km/h) |
| 55 mph (88.51 km/h) | 51.33 mph (82.6 km/h) |
| 60 mph (96.56 km/h) | 55.99 mph (90.11 km/h) |
| 65 mph (104.61 km/h) | 60.66 mph (97.62 km/h) |
| 70 mph (112.65 km/h) | 65.32 mph (105.13 km/h) |
| 75 mph (120.7 km/h) | 69.99 mph (112.64 km/h) |
| 80 mph (128.75 km/h) | 74.66 mph (120.15 km/h) |
| 85 mph (136.79 km/h) | 79.32 mph (127.66 km/h) |
| 90 mph (144.84 km/h) | 83.99 mph (135.16 km/h) |
| 95 mph (152.89 km/h) | 88.65 mph (142.67 km/h) |
| 100 mph (160.93 km/h) | 93.32 mph (150.18 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
