Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 180/50-17 | 180/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.09 (611.8) | 26.92 (683.8) | 2.83 (72) 11.8% |
| Width inches (mm) | 7.09 (180) | 7.09 (180) | 0 (0) 0% |
| Circum. inches (mm) | 75.67 (1922.03) | 84.58 (2148.22) | 8.91 (226.19) 11.8% |
| Sidewall Height inches (mm) | 3.54 (90) | 4.96 (126) | 1.42 (36) 40% |
| Revolutions per mile (km) | 837.32 (520.28) | 749.15 (465.5) | -88.16 (-54.78) -10.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.35 mph (35.97 km/h) |
| 25 mph (40.23 km/h) | 27.94 mph (44.97 km/h) |
| 30 mph (48.28 km/h) | 33.53 mph (53.96 km/h) |
| 35 mph (56.33 km/h) | 39.12 mph (62.96 km/h) |
| 40 mph (64.37 km/h) | 44.71 mph (71.95 km/h) |
| 45 mph (72.42 km/h) | 50.3 mph (80.94 km/h) |
| 50 mph (80.47 km/h) | 55.88 mph (89.94 km/h) |
| 55 mph (88.51 km/h) | 61.47 mph (98.93 km/h) |
| 60 mph (96.56 km/h) | 67.06 mph (107.92 km/h) |
| 65 mph (104.61 km/h) | 72.65 mph (116.92 km/h) |
| 70 mph (112.65 km/h) | 78.24 mph (125.91 km/h) |
| 75 mph (120.7 km/h) | 83.83 mph (134.91 km/h) |
| 80 mph (128.75 km/h) | 89.41 mph (143.9 km/h) |
| 85 mph (136.79 km/h) | 95 mph (152.89 km/h) |
| 90 mph (144.84 km/h) | 100.59 mph (161.89 km/h) |
| 95 mph (152.89 km/h) | 106.18 mph (170.88 km/h) |
| 100 mph (160.93 km/h) | 111.77 mph (179.87 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1906 | 2215 | 2385 | 2491 | 2604 | 2685 | 2774 | 2880 | 3026 | 3172 | 3334 | 3464 | 3699 | 3959 | 4162 | 4292 | 4365 | 4632 | 5005 | 5817 |
Better Fuel Economy Factory Ratios Increased Power
