Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/45-13 | 185/50-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.97 (532.7) | 21.28 (540.6) | 0.31 (7.9) 1.5% |
| Width inches (mm) | 8.86 (225) | 7.28 (185) | -1.57 (-40) -17.8% |
| Circum. inches (mm) | 65.89 (1673.53) | 66.86 (1698.34) | 0.98 (24.82) 1.5% |
| Sidewall Height inches (mm) | 3.99 (101.25) | 3.64 (92.5) | -0.34 (-8.75) -8.6% |
| Revolutions per mile (km) | 961.65 (597.54) | 947.6 (588.81) | -14.05 (-8.73) -1.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.3 mph (32.66 km/h) |
| 25 mph (40.23 km/h) | 25.37 mph (40.83 km/h) |
| 30 mph (48.28 km/h) | 30.44 mph (49 km/h) |
| 35 mph (56.33 km/h) | 35.52 mph (57.16 km/h) |
| 40 mph (64.37 km/h) | 40.59 mph (65.33 km/h) |
| 45 mph (72.42 km/h) | 45.67 mph (73.49 km/h) |
| 50 mph (80.47 km/h) | 50.74 mph (81.66 km/h) |
| 55 mph (88.51 km/h) | 55.82 mph (89.83 km/h) |
| 60 mph (96.56 km/h) | 60.89 mph (97.99 km/h) |
| 65 mph (104.61 km/h) | 65.96 mph (106.16 km/h) |
| 70 mph (112.65 km/h) | 71.04 mph (114.32 km/h) |
| 75 mph (120.7 km/h) | 76.11 mph (122.49 km/h) |
| 80 mph (128.75 km/h) | 81.19 mph (130.66 km/h) |
| 85 mph (136.79 km/h) | 86.26 mph (138.82 km/h) |
| 90 mph (144.84 km/h) | 91.33 mph (146.99 km/h) |
| 95 mph (152.89 km/h) | 96.41 mph (155.16 km/h) |
| 100 mph (160.93 km/h) | 101.48 mph (163.32 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
