Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/70-13 | 205/70-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.2 (589.2) | 24.3 (617.2) | 1.1 (28) 4.8% |
| Width inches (mm) | 7.28 (185) | 8.07 (205) | 0.79 (20) 10.8% |
| Circum. inches (mm) | 72.88 (1851.03) | 76.34 (1938.99) | 3.46 (87.96) 4.8% |
| Sidewall Height inches (mm) | 5.1 (129.5) | 5.65 (143.5) | 0.55 (14) 10.8% |
| Revolutions per mile (km) | 869.43 (540.24) | 829.99 (515.73) | -39.44 (-24.51) -4.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.95 mph (33.72 km/h) |
| 25 mph (40.23 km/h) | 26.19 mph (42.15 km/h) |
| 30 mph (48.28 km/h) | 31.43 mph (50.57 km/h) |
| 35 mph (56.33 km/h) | 36.66 mph (59 km/h) |
| 40 mph (64.37 km/h) | 41.9 mph (67.43 km/h) |
| 45 mph (72.42 km/h) | 47.14 mph (75.86 km/h) |
| 50 mph (80.47 km/h) | 52.38 mph (84.29 km/h) |
| 55 mph (88.51 km/h) | 57.61 mph (92.72 km/h) |
| 60 mph (96.56 km/h) | 62.85 mph (101.15 km/h) |
| 65 mph (104.61 km/h) | 68.09 mph (109.58 km/h) |
| 70 mph (112.65 km/h) | 73.33 mph (118.01 km/h) |
| 75 mph (120.7 km/h) | 78.56 mph (126.44 km/h) |
| 80 mph (128.75 km/h) | 83.8 mph (134.87 km/h) |
| 85 mph (136.79 km/h) | 89.04 mph (143.3 km/h) |
| 90 mph (144.84 km/h) | 94.28 mph (151.72 km/h) |
| 95 mph (152.89 km/h) | 99.51 mph (160.15 km/h) |
| 100 mph (160.93 km/h) | 104.75 mph (168.58 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2112 | 2454 | 2642 | 2759 | 2885 | 2975 | 3074 | 3191 | 3353 | 3514 | 3694 | 3838 | 4099 | 4386 | 4611 | 4755 | 4836 | 5132 | 5546 | 6444 |
Better Fuel Economy Factory Ratios Increased Power
