Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/40-14 | 185/60-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.09 (535.6) | 22.74 (577.6) | 1.65 (42) 7.8% |
| Width inches (mm) | 8.86 (225) | 7.28 (185) | -1.57 (-40) -17.8% |
| Circum. inches (mm) | 66.25 (1682.64) | 71.44 (1814.58) | 5.19 (131.95) 7.8% |
| Sidewall Height inches (mm) | 3.54 (90) | 4.37 (111) | 0.83 (21) 23.3% |
| Revolutions per mile (km) | 956.44 (594.3) | 886.89 (551.09) | -69.55 (-43.21) -7.3% |
185/60-14 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.57 mph (34.71 km/h) |
| 25 mph (40.23 km/h) | 26.96 mph (43.39 km/h) |
| 30 mph (48.28 km/h) | 32.35 mph (52.07 km/h) |
| 35 mph (56.33 km/h) | 37.74 mph (60.74 km/h) |
| 40 mph (64.37 km/h) | 43.14 mph (69.42 km/h) |
| 45 mph (72.42 km/h) | 48.53 mph (78.1 km/h) |
| 50 mph (80.47 km/h) | 53.92 mph (86.78 km/h) |
| 55 mph (88.51 km/h) | 59.31 mph (95.46 km/h) |
| 60 mph (96.56 km/h) | 64.71 mph (104.13 km/h) |
| 65 mph (104.61 km/h) | 70.1 mph (112.81 km/h) |
| 70 mph (112.65 km/h) | 75.49 mph (121.49 km/h) |
| 75 mph (120.7 km/h) | 80.88 mph (130.17 km/h) |
| 80 mph (128.75 km/h) | 86.27 mph (138.84 km/h) |
| 85 mph (136.79 km/h) | 91.67 mph (147.52 km/h) |
| 90 mph (144.84 km/h) | 97.06 mph (156.2 km/h) |
| 95 mph (152.89 km/h) | 102.45 mph (164.88 km/h) |
| 100 mph (160.93 km/h) | 107.84 mph (173.55 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2257 | 2622 | 2824 | 2948 | 3083 | 3179 | 3285 | 3409 | 3582 | 3755 | 3947 | 4101 | 4379 | 4687 | 4927 | 5081 | 5167 | 5484 | 5926 | 6886 |
Better Fuel Economy Factory Ratios Increased Power
