Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 205/90-15 | 225/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.53 (750) | 27.4 (696) | -2.13 (-54) -7.2% |
| Width inches (mm) | 8.07 (205) | 8.86 (225) | 0.79 (20) 9.8% |
| Circum. inches (mm) | 92.76 (2356.19) | 86.08 (2186.55) | -6.68 (-169.65) -7.2% |
| Sidewall Height inches (mm) | 7.26 (184.5) | 6.2 (157.5) | -1.06 (-27) -14.6% |
| Revolutions per mile (km) | 683.03 (424.41) | 736.02 (457.34) | 52.99 (32.93) 7.8% |
225/70-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.56 mph (29.87 km/h) |
| 25 mph (40.23 km/h) | 23.2 mph (37.34 km/h) |
| 30 mph (48.28 km/h) | 27.84 mph (44.8 km/h) |
| 35 mph (56.33 km/h) | 32.48 mph (52.27 km/h) |
| 40 mph (64.37 km/h) | 37.12 mph (59.74 km/h) |
| 45 mph (72.42 km/h) | 41.76 mph (67.21 km/h) |
| 50 mph (80.47 km/h) | 46.4 mph (74.67 km/h) |
| 55 mph (88.51 km/h) | 51.04 mph (82.14 km/h) |
| 60 mph (96.56 km/h) | 55.68 mph (89.61 km/h) |
| 65 mph (104.61 km/h) | 60.32 mph (97.08 km/h) |
| 70 mph (112.65 km/h) | 64.96 mph (104.54 km/h) |
| 75 mph (120.7 km/h) | 69.6 mph (112.01 km/h) |
| 80 mph (128.75 km/h) | 74.24 mph (119.48 km/h) |
| 85 mph (136.79 km/h) | 78.88 mph (126.95 km/h) |
| 90 mph (144.84 km/h) | 83.52 mph (134.41 km/h) |
| 95 mph (152.89 km/h) | 88.16 mph (141.88 km/h) |
| 100 mph (160.93 km/h) | 92.8 mph (149.35 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1873 | 2176 | 2343 | 2447 | 2558 | 2638 | 2726 | 2829 | 2973 | 3116 | 3276 | 3403 | 3634 | 3890 | 4089 | 4216 | 4288 | 4551 | 4918 | 5715 |
Better Fuel Economy Factory Ratios Increased Power
