Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/45-13 | 205/40-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.97 (532.7) | 20.46 (519.6) | -0.52 (-13.1) -2.5% |
| Width inches (mm) | 8.86 (225) | 8.07 (205) | -0.79 (-20) -8.9% |
| Circum. inches (mm) | 65.89 (1673.53) | 64.27 (1632.37) | -1.62 (-41.15) -2.5% |
| Sidewall Height inches (mm) | 3.99 (101.25) | 3.23 (82) | -0.76 (-19.25) -19% |
| Revolutions per mile (km) | 961.65 (597.54) | 985.89 (612.6) | 24.24 (15.06) 2.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.51 mph (31.4 km/h) |
| 25 mph (40.23 km/h) | 24.39 mph (39.24 km/h) |
| 30 mph (48.28 km/h) | 29.26 mph (47.09 km/h) |
| 35 mph (56.33 km/h) | 34.14 mph (54.94 km/h) |
| 40 mph (64.37 km/h) | 39.02 mph (62.79 km/h) |
| 45 mph (72.42 km/h) | 43.89 mph (70.64 km/h) |
| 50 mph (80.47 km/h) | 48.77 mph (78.49 km/h) |
| 55 mph (88.51 km/h) | 53.65 mph (86.34 km/h) |
| 60 mph (96.56 km/h) | 58.52 mph (94.19 km/h) |
| 65 mph (104.61 km/h) | 63.4 mph (102.04 km/h) |
| 70 mph (112.65 km/h) | 68.28 mph (109.88 km/h) |
| 75 mph (120.7 km/h) | 73.16 mph (117.73 km/h) |
| 80 mph (128.75 km/h) | 78.03 mph (125.58 km/h) |
| 85 mph (136.79 km/h) | 82.91 mph (133.43 km/h) |
| 90 mph (144.84 km/h) | 87.79 mph (141.28 km/h) |
| 95 mph (152.89 km/h) | 92.66 mph (149.13 km/h) |
| 100 mph (160.93 km/h) | 97.54 mph (156.98 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
