Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 180/80-14 | 180/75-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.34 (643.6) | 24.63 (625.6) | -0.71 (-18) -2.8% |
| Width inches (mm) | 7.09 (180) | 7.09 (180) | 0 (0) 0% |
| Circum. inches (mm) | 79.6 (2021.93) | 77.38 (1965.38) | -2.23 (-56.55) -2.8% |
| Sidewall Height inches (mm) | 5.67 (144) | 5.31 (135) | -0.35 (-9) -6.3% |
| Revolutions per mile (km) | 795.94 (494.58) | 818.85 (508.81) | 22.9 (14.23) 2.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.44 mph (31.29 km/h) |
| 25 mph (40.23 km/h) | 24.3 mph (39.11 km/h) |
| 30 mph (48.28 km/h) | 29.16 mph (46.93 km/h) |
| 35 mph (56.33 km/h) | 34.02 mph (54.75 km/h) |
| 40 mph (64.37 km/h) | 38.88 mph (62.57 km/h) |
| 45 mph (72.42 km/h) | 43.74 mph (70.4 km/h) |
| 50 mph (80.47 km/h) | 48.6 mph (78.22 km/h) |
| 55 mph (88.51 km/h) | 53.46 mph (86.04 km/h) |
| 60 mph (96.56 km/h) | 58.32 mph (93.86 km/h) |
| 65 mph (104.61 km/h) | 63.18 mph (101.68 km/h) |
| 70 mph (112.65 km/h) | 68.04 mph (109.5 km/h) |
| 75 mph (120.7 km/h) | 72.9 mph (117.33 km/h) |
| 80 mph (128.75 km/h) | 77.76 mph (125.15 km/h) |
| 85 mph (136.79 km/h) | 82.62 mph (132.97 km/h) |
| 90 mph (144.84 km/h) | 87.48 mph (140.79 km/h) |
| 95 mph (152.89 km/h) | 92.34 mph (148.61 km/h) |
| 100 mph (160.93 km/h) | 97.2 mph (156.43 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2084 | 2421 | 2607 | 2722 | 2846 | 2935 | 3033 | 3148 | 3307 | 3467 | 3644 | 3786 | 4043 | 4327 | 4549 | 4691 | 4771 | 5063 | 5471 | 6358 |
Better Fuel Economy Factory Ratios Increased Power
