Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/30-14 | 205/45-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 19.31 (490.6) | 21.26 (540.1) | 1.95 (49.5) 10.1% |
| Width inches (mm) | 8.86 (225) | 8.07 (205) | -0.79 (-20) -8.9% |
| Circum. inches (mm) | 60.68 (1541.27) | 66.8 (1696.77) | 6.12 (155.51) 10.1% |
| Sidewall Height inches (mm) | 2.66 (67.5) | 3.63 (92.25) | 0.97 (24.75) 36.7% |
| Revolutions per mile (km) | 1044.17 (648.82) | 948.47 (589.35) | -95.7 (-59.46) -9.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.02 mph (35.43 km/h) |
| 25 mph (40.23 km/h) | 27.52 mph (44.29 km/h) |
| 30 mph (48.28 km/h) | 33.03 mph (53.15 km/h) |
| 35 mph (56.33 km/h) | 38.53 mph (62.01 km/h) |
| 40 mph (64.37 km/h) | 44.04 mph (70.87 km/h) |
| 45 mph (72.42 km/h) | 49.54 mph (79.73 km/h) |
| 50 mph (80.47 km/h) | 55.04 mph (88.59 km/h) |
| 55 mph (88.51 km/h) | 60.55 mph (97.44 km/h) |
| 60 mph (96.56 km/h) | 66.05 mph (106.3 km/h) |
| 65 mph (104.61 km/h) | 71.56 mph (115.16 km/h) |
| 70 mph (112.65 km/h) | 77.06 mph (124.02 km/h) |
| 75 mph (120.7 km/h) | 82.57 mph (132.88 km/h) |
| 80 mph (128.75 km/h) | 88.07 mph (141.74 km/h) |
| 85 mph (136.79 km/h) | 93.58 mph (150.6 km/h) |
| 90 mph (144.84 km/h) | 99.08 mph (159.46 km/h) |
| 95 mph (152.89 km/h) | 104.59 mph (168.31 km/h) |
| 100 mph (160.93 km/h) | 110.09 mph (177.17 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
