Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/70-13 | 205/65-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.2 (589.2) | 23.49 (596.7) | 0.3 (7.5) 1.3% |
| Width inches (mm) | 7.28 (185) | 8.07 (205) | 0.79 (20) 10.8% |
| Circum. inches (mm) | 72.88 (1851.03) | 73.8 (1874.59) | 0.93 (23.56) 1.3% |
| Sidewall Height inches (mm) | 5.1 (129.5) | 5.25 (133.25) | 0.15 (3.75) 2.9% |
| Revolutions per mile (km) | 869.43 (540.24) | 858.51 (533.45) | -10.93 (-6.79) -1.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.25 mph (32.6 km/h) |
| 25 mph (40.23 km/h) | 25.32 mph (40.75 km/h) |
| 30 mph (48.28 km/h) | 30.38 mph (48.89 km/h) |
| 35 mph (56.33 km/h) | 35.45 mph (57.04 km/h) |
| 40 mph (64.37 km/h) | 40.51 mph (65.19 km/h) |
| 45 mph (72.42 km/h) | 45.57 mph (73.34 km/h) |
| 50 mph (80.47 km/h) | 50.64 mph (81.49 km/h) |
| 55 mph (88.51 km/h) | 55.7 mph (89.64 km/h) |
| 60 mph (96.56 km/h) | 60.76 mph (97.79 km/h) |
| 65 mph (104.61 km/h) | 65.83 mph (105.94 km/h) |
| 70 mph (112.65 km/h) | 70.89 mph (114.09 km/h) |
| 75 mph (120.7 km/h) | 75.95 mph (122.24 km/h) |
| 80 mph (128.75 km/h) | 81.02 mph (130.39 km/h) |
| 85 mph (136.79 km/h) | 86.08 mph (138.54 km/h) |
| 90 mph (144.84 km/h) | 91.15 mph (146.68 km/h) |
| 95 mph (152.89 km/h) | 96.21 mph (154.83 km/h) |
| 100 mph (160.93 km/h) | 101.27 mph (162.98 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2185 | 2538 | 2733 | 2854 | 2984 | 3077 | 3179 | 3300 | 3468 | 3635 | 3821 | 3970 | 4239 | 4537 | 4769 | 4918 | 5002 | 5308 | 5736 | 6666 |
Better Fuel Economy Factory Ratios Increased Power
