Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/40-14 | 205/40-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.09 (535.6) | 20.46 (519.6) | -0.63 (-16) -3% |
| Width inches (mm) | 8.86 (225) | 8.07 (205) | -0.79 (-20) -8.9% |
| Circum. inches (mm) | 66.25 (1682.64) | 64.27 (1632.37) | -1.98 (-50.27) -3% |
| Sidewall Height inches (mm) | 3.54 (90) | 3.23 (82) | -0.31 (-8) -8.9% |
| Revolutions per mile (km) | 956.44 (594.3) | 985.89 (612.6) | 29.45 (18.3) 3.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.4 mph (31.23 km/h) |
| 25 mph (40.23 km/h) | 24.25 mph (39.03 km/h) |
| 30 mph (48.28 km/h) | 29.1 mph (46.84 km/h) |
| 35 mph (56.33 km/h) | 33.95 mph (54.64 km/h) |
| 40 mph (64.37 km/h) | 38.81 mph (62.45 km/h) |
| 45 mph (72.42 km/h) | 43.66 mph (70.26 km/h) |
| 50 mph (80.47 km/h) | 48.51 mph (78.06 km/h) |
| 55 mph (88.51 km/h) | 53.36 mph (85.87 km/h) |
| 60 mph (96.56 km/h) | 58.21 mph (93.68 km/h) |
| 65 mph (104.61 km/h) | 63.06 mph (101.48 km/h) |
| 70 mph (112.65 km/h) | 67.91 mph (109.29 km/h) |
| 75 mph (120.7 km/h) | 72.76 mph (117.1 km/h) |
| 80 mph (128.75 km/h) | 77.61 mph (124.9 km/h) |
| 85 mph (136.79 km/h) | 82.46 mph (132.71 km/h) |
| 90 mph (144.84 km/h) | 87.31 mph (140.51 km/h) |
| 95 mph (152.89 km/h) | 92.16 mph (148.32 km/h) |
| 100 mph (160.93 km/h) | 97.01 mph (156.13 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
