Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 205/80-17 | 225/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.91 (759.8) | 27.4 (696) | -2.51 (-63.8) -8.4% |
| Width inches (mm) | 8.07 (205) | 8.86 (225) | 0.79 (20) 9.8% |
| Circum. inches (mm) | 93.98 (2386.98) | 86.08 (2186.55) | -7.89 (-200.43) -8.4% |
| Sidewall Height inches (mm) | 6.46 (164) | 6.2 (157.5) | -0.26 (-6.5) -4% |
| Revolutions per mile (km) | 674.22 (418.94) | 736.02 (457.34) | 61.8 (38.4) 9.2% |
225/70-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.32 mph (29.48 km/h) |
| 25 mph (40.23 km/h) | 22.9 mph (36.86 km/h) |
| 30 mph (48.28 km/h) | 27.48 mph (44.23 km/h) |
| 35 mph (56.33 km/h) | 32.06 mph (51.6 km/h) |
| 40 mph (64.37 km/h) | 36.64 mph (58.97 km/h) |
| 45 mph (72.42 km/h) | 41.22 mph (66.34 km/h) |
| 50 mph (80.47 km/h) | 45.8 mph (73.71 km/h) |
| 55 mph (88.51 km/h) | 50.38 mph (81.08 km/h) |
| 60 mph (96.56 km/h) | 54.96 mph (88.45 km/h) |
| 65 mph (104.61 km/h) | 59.54 mph (95.82 km/h) |
| 70 mph (112.65 km/h) | 64.12 mph (103.19 km/h) |
| 75 mph (120.7 km/h) | 68.7 mph (110.57 km/h) |
| 80 mph (128.75 km/h) | 73.28 mph (117.94 km/h) |
| 85 mph (136.79 km/h) | 77.86 mph (125.31 km/h) |
| 90 mph (144.84 km/h) | 82.44 mph (132.68 km/h) |
| 95 mph (152.89 km/h) | 87.02 mph (140.05 km/h) |
| 100 mph (160.93 km/h) | 91.6 mph (147.42 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
