Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 205/90-15 | 225/85-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.53 (750) | 30.06 (763.5) | 0.53 (13.5) 1.8% |
| Width inches (mm) | 8.07 (205) | 8.86 (225) | 0.79 (20) 9.8% |
| Circum. inches (mm) | 92.76 (2356.19) | 94.43 (2398.61) | 1.67 (42.41) 1.8% |
| Sidewall Height inches (mm) | 7.26 (184.5) | 7.53 (191.25) | 0.27 (6.75) 3.7% |
| Revolutions per mile (km) | 683.03 (424.41) | 670.95 (416.91) | -12.08 (-7.5) -1.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.36 mph (32.77 km/h) |
| 25 mph (40.23 km/h) | 25.45 mph (40.96 km/h) |
| 30 mph (48.28 km/h) | 30.54 mph (49.15 km/h) |
| 35 mph (56.33 km/h) | 35.63 mph (57.34 km/h) |
| 40 mph (64.37 km/h) | 40.72 mph (65.53 km/h) |
| 45 mph (72.42 km/h) | 45.81 mph (73.72 km/h) |
| 50 mph (80.47 km/h) | 50.9 mph (81.92 km/h) |
| 55 mph (88.51 km/h) | 55.99 mph (90.11 km/h) |
| 60 mph (96.56 km/h) | 61.08 mph (98.3 km/h) |
| 65 mph (104.61 km/h) | 66.17 mph (106.49 km/h) |
| 70 mph (112.65 km/h) | 71.26 mph (114.68 km/h) |
| 75 mph (120.7 km/h) | 76.35 mph (122.87 km/h) |
| 80 mph (128.75 km/h) | 81.44 mph (131.07 km/h) |
| 85 mph (136.79 km/h) | 86.53 mph (139.26 km/h) |
| 90 mph (144.84 km/h) | 91.62 mph (147.45 km/h) |
| 95 mph (152.89 km/h) | 96.71 mph (155.64 km/h) |
| 100 mph (160.93 km/h) | 101.8 mph (163.83 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1707 | 1984 | 2136 | 2231 | 2332 | 2405 | 2485 | 2579 | 2710 | 2841 | 2986 | 3102 | 3313 | 3546 | 3727 | 3844 | 3909 | 4149 | 4483 | 5210 |
Better Fuel Economy Factory Ratios Increased Power
