Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/60-15 | 225/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.1 (663) | 27.4 (696) | 1.3 (33) 5% |
| Width inches (mm) | 9.25 (235) | 8.86 (225) | -0.39 (-10) -4.3% |
| Circum. inches (mm) | 82 (2082.88) | 86.08 (2186.55) | 4.08 (103.67) 5% |
| Sidewall Height inches (mm) | 5.55 (141) | 6.2 (157.5) | 0.65 (16.5) 11.7% |
| Revolutions per mile (km) | 772.65 (480.1) | 736.02 (457.34) | -36.63 (-22.76) -4.7% |
225/70-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21 mph (33.79 km/h) |
| 25 mph (40.23 km/h) | 26.24 mph (42.24 km/h) |
| 30 mph (48.28 km/h) | 31.49 mph (50.68 km/h) |
| 35 mph (56.33 km/h) | 36.74 mph (59.13 km/h) |
| 40 mph (64.37 km/h) | 41.99 mph (67.58 km/h) |
| 45 mph (72.42 km/h) | 47.24 mph (76.03 km/h) |
| 50 mph (80.47 km/h) | 52.49 mph (84.47 km/h) |
| 55 mph (88.51 km/h) | 57.74 mph (92.92 km/h) |
| 60 mph (96.56 km/h) | 62.99 mph (101.37 km/h) |
| 65 mph (104.61 km/h) | 68.24 mph (109.81 km/h) |
| 70 mph (112.65 km/h) | 73.48 mph (118.26 km/h) |
| 75 mph (120.7 km/h) | 78.73 mph (126.71 km/h) |
| 80 mph (128.75 km/h) | 83.98 mph (135.16 km/h) |
| 85 mph (136.79 km/h) | 89.23 mph (143.6 km/h) |
| 90 mph (144.84 km/h) | 94.48 mph (152.05 km/h) |
| 95 mph (152.89 km/h) | 99.73 mph (160.5 km/h) |
| 100 mph (160.93 km/h) | 104.98 mph (168.95 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
