Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/45-13 | 205/65-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.97 (532.7) | 23.49 (596.7) | 2.52 (64) 12% |
| Width inches (mm) | 8.86 (225) | 8.07 (205) | -0.79 (-20) -8.9% |
| Circum. inches (mm) | 65.89 (1673.53) | 73.8 (1874.59) | 7.92 (201.06) 12% |
| Sidewall Height inches (mm) | 3.99 (101.25) | 5.25 (133.25) | 1.26 (32) 31.6% |
| Revolutions per mile (km) | 961.65 (597.54) | 858.51 (533.45) | -103.14 (-64.09) -10.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.4 mph (36.05 km/h) |
| 25 mph (40.23 km/h) | 28 mph (45.07 km/h) |
| 30 mph (48.28 km/h) | 33.6 mph (54.08 km/h) |
| 35 mph (56.33 km/h) | 39.2 mph (63.09 km/h) |
| 40 mph (64.37 km/h) | 44.81 mph (72.11 km/h) |
| 45 mph (72.42 km/h) | 50.41 mph (81.12 km/h) |
| 50 mph (80.47 km/h) | 56.01 mph (90.13 km/h) |
| 55 mph (88.51 km/h) | 61.61 mph (99.15 km/h) |
| 60 mph (96.56 km/h) | 67.21 mph (108.16 km/h) |
| 65 mph (104.61 km/h) | 72.81 mph (117.18 km/h) |
| 70 mph (112.65 km/h) | 78.41 mph (126.19 km/h) |
| 75 mph (120.7 km/h) | 84.01 mph (135.2 km/h) |
| 80 mph (128.75 km/h) | 89.61 mph (144.22 km/h) |
| 85 mph (136.79 km/h) | 95.21 mph (153.23 km/h) |
| 90 mph (144.84 km/h) | 100.81 mph (162.24 km/h) |
| 95 mph (152.89 km/h) | 106.41 mph (171.26 km/h) |
| 100 mph (160.93 km/h) | 112.01 mph (180.27 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
