Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 180/80-14 | 175/20-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.34 (643.6) | 16.76 (425.6) | -8.58 (-218) -33.9% |
| Width inches (mm) | 7.09 (180) | 6.89 (175) | -0.2 (-5) -2.8% |
| Circum. inches (mm) | 79.6 (2021.93) | 52.64 (1337.06) | -26.96 (-684.87) -33.9% |
| Sidewall Height inches (mm) | 5.67 (144) | 1.38 (35) | -4.29 (-109) -75.7% |
| Revolutions per mile (km) | 795.94 (494.58) | 1203.64 (747.91) | 407.7 (253.33) 51.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 13.23 mph (21.28 km/h) |
| 25 mph (40.23 km/h) | 16.53 mph (26.61 km/h) |
| 30 mph (48.28 km/h) | 19.84 mph (31.93 km/h) |
| 35 mph (56.33 km/h) | 23.14 mph (37.25 km/h) |
| 40 mph (64.37 km/h) | 26.45 mph (42.57 km/h) |
| 45 mph (72.42 km/h) | 29.76 mph (47.89 km/h) |
| 50 mph (80.47 km/h) | 33.06 mph (53.21 km/h) |
| 55 mph (88.51 km/h) | 36.37 mph (58.53 km/h) |
| 60 mph (96.56 km/h) | 39.68 mph (63.85 km/h) |
| 65 mph (104.61 km/h) | 42.98 mph (69.17 km/h) |
| 70 mph (112.65 km/h) | 46.29 mph (74.5 km/h) |
| 75 mph (120.7 km/h) | 49.6 mph (79.82 km/h) |
| 80 mph (128.75 km/h) | 52.9 mph (85.14 km/h) |
| 85 mph (136.79 km/h) | 56.21 mph (90.46 km/h) |
| 90 mph (144.84 km/h) | 59.52 mph (95.78 km/h) |
| 95 mph (152.89 km/h) | 62.82 mph (101.1 km/h) |
| 100 mph (160.93 km/h) | 66.13 mph (106.42 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
