Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/70-15 | 225/80-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.4 (696) | 29.17 (741) | 1.77 (45) 6.5% |
| Width inches (mm) | 8.86 (225) | 8.86 (225) | 0 (0) 0% |
| Circum. inches (mm) | 86.08 (2186.55) | 91.65 (2327.92) | 5.57 (141.37) 6.5% |
| Sidewall Height inches (mm) | 6.2 (157.5) | 7.09 (180) | 0.89 (22.5) 14.3% |
| Revolutions per mile (km) | 736.02 (457.34) | 691.32 (429.57) | -44.7 (-27.77) -6.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.29 mph (34.27 km/h) |
| 25 mph (40.23 km/h) | 26.62 mph (42.83 km/h) |
| 30 mph (48.28 km/h) | 31.94 mph (51.4 km/h) |
| 35 mph (56.33 km/h) | 37.26 mph (59.97 km/h) |
| 40 mph (64.37 km/h) | 42.59 mph (68.54 km/h) |
| 45 mph (72.42 km/h) | 47.91 mph (77.1 km/h) |
| 50 mph (80.47 km/h) | 53.23 mph (85.67 km/h) |
| 55 mph (88.51 km/h) | 58.56 mph (94.24 km/h) |
| 60 mph (96.56 km/h) | 63.88 mph (102.8 km/h) |
| 65 mph (104.61 km/h) | 69.2 mph (111.37 km/h) |
| 70 mph (112.65 km/h) | 74.53 mph (119.94 km/h) |
| 75 mph (120.7 km/h) | 79.85 mph (128.5 km/h) |
| 80 mph (128.75 km/h) | 85.17 mph (137.07 km/h) |
| 85 mph (136.79 km/h) | 90.5 mph (145.64 km/h) |
| 90 mph (144.84 km/h) | 95.82 mph (154.21 km/h) |
| 95 mph (152.89 km/h) | 101.14 mph (162.77 km/h) |
| 100 mph (160.93 km/h) | 106.47 mph (171.34 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1759 | 2044 | 2201 | 2298 | 2403 | 2478 | 2560 | 2658 | 2792 | 2927 | 3077 | 3197 | 3414 | 3653 | 3840 | 3960 | 4028 | 4275 | 4619 | 5368 |
Better Fuel Economy Factory Ratios Increased Power
