Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/75-17 | 225/80-17.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.7 (754.3) | 31.67 (804.5) | 1.98 (50.2) 6.7% |
| Width inches (mm) | 8.46 (215) | 8.86 (225) | 0.39 (10) 4.7% |
| Circum. inches (mm) | 93.3 (2369.7) | 99.5 (2527.41) | 6.21 (157.71) 6.7% |
| Sidewall Height inches (mm) | 6.35 (161.25) | 7.09 (180) | 0.74 (18.75) 11.6% |
| Revolutions per mile (km) | 679.13 (421.99) | 636.76 (395.66) | -42.38 (-26.33) -6.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.33 mph (34.33 km/h) |
| 25 mph (40.23 km/h) | 26.66 mph (42.91 km/h) |
| 30 mph (48.28 km/h) | 32 mph (51.49 km/h) |
| 35 mph (56.33 km/h) | 37.33 mph (60.08 km/h) |
| 40 mph (64.37 km/h) | 42.66 mph (68.66 km/h) |
| 45 mph (72.42 km/h) | 47.99 mph (77.24 km/h) |
| 50 mph (80.47 km/h) | 53.33 mph (85.82 km/h) |
| 55 mph (88.51 km/h) | 58.66 mph (94.4 km/h) |
| 60 mph (96.56 km/h) | 63.99 mph (102.99 km/h) |
| 65 mph (104.61 km/h) | 69.33 mph (111.57 km/h) |
| 70 mph (112.65 km/h) | 74.66 mph (120.15 km/h) |
| 75 mph (120.7 km/h) | 79.99 mph (128.73 km/h) |
| 80 mph (128.75 km/h) | 85.32 mph (137.32 km/h) |
| 85 mph (136.79 km/h) | 90.66 mph (145.9 km/h) |
| 90 mph (144.84 km/h) | 95.99 mph (154.48 km/h) |
| 95 mph (152.89 km/h) | 101.32 mph (163.06 km/h) |
| 100 mph (160.93 km/h) | 106.66 mph (171.65 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1620 | 1882 | 2027 | 2117 | 2213 | 2282 | 2358 | 2448 | 2572 | 2696 | 2834 | 2944 | 3144 | 3365 | 3537 | 3648 | 3710 | 3937 | 4254 | 4944 |
Better Fuel Economy Factory Ratios Increased Power
