Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/50-14 | 225/30-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.89 (530.6) | 22.31 (566.8) | 1.43 (36.2) 6.8% |
| Width inches (mm) | 6.89 (175) | 8.86 (225) | 1.97 (50) 28.6% |
| Circum. inches (mm) | 65.63 (1666.93) | 70.1 (1780.65) | 4.48 (113.73) 6.8% |
| Sidewall Height inches (mm) | 3.44 (87.5) | 2.66 (67.5) | -0.79 (-20) -22.9% |
| Revolutions per mile (km) | 965.45 (599.9) | 903.79 (561.59) | -61.66 (-38.31) -6.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.36 mph (34.38 km/h) |
| 25 mph (40.23 km/h) | 26.71 mph (42.98 km/h) |
| 30 mph (48.28 km/h) | 32.05 mph (51.57 km/h) |
| 35 mph (56.33 km/h) | 37.39 mph (60.17 km/h) |
| 40 mph (64.37 km/h) | 42.73 mph (68.77 km/h) |
| 45 mph (72.42 km/h) | 48.07 mph (77.36 km/h) |
| 50 mph (80.47 km/h) | 53.41 mph (85.96 km/h) |
| 55 mph (88.51 km/h) | 58.75 mph (94.55 km/h) |
| 60 mph (96.56 km/h) | 64.09 mph (103.15 km/h) |
| 65 mph (104.61 km/h) | 69.43 mph (111.74 km/h) |
| 70 mph (112.65 km/h) | 74.78 mph (120.34 km/h) |
| 75 mph (120.7 km/h) | 80.12 mph (128.94 km/h) |
| 80 mph (128.75 km/h) | 85.46 mph (137.53 km/h) |
| 85 mph (136.79 km/h) | 90.8 mph (146.13 km/h) |
| 90 mph (144.84 km/h) | 96.14 mph (154.72 km/h) |
| 95 mph (152.89 km/h) | 101.48 mph (163.32 km/h) |
| 100 mph (160.93 km/h) | 106.82 mph (171.91 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2300 | 2672 | 2877 | 3005 | 3142 | 3240 | 3347 | 3474 | 3651 | 3827 | 4023 | 4179 | 4463 | 4776 | 5021 | 5177 | 5265 | 5588 | 6039 | 7017 |
Better Fuel Economy Factory Ratios Increased Power
