Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 100/80-14 | 80/90-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.3 (515.6) | 19.67 (499.6) | -0.63 (-16) -3.1% |
| Width inches (mm) | 3.94 (100) | 3.15 (80) | -0.79 (-20) -20% |
| Circum. inches (mm) | 63.77 (1619.81) | 61.79 (1569.54) | -1.98 (-50.27) -3.1% |
| Sidewall Height inches (mm) | 3.15 (80) | 2.83 (72) | -0.31 (-8) -10% |
| Revolutions per mile (km) | 993.54 (617.36) | 1025.36 (637.13) | 31.82 (19.77) 3.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.38 mph (31.19 km/h) |
| 25 mph (40.23 km/h) | 24.22 mph (38.99 km/h) |
| 30 mph (48.28 km/h) | 29.07 mph (46.78 km/h) |
| 35 mph (56.33 km/h) | 33.91 mph (54.58 km/h) |
| 40 mph (64.37 km/h) | 38.76 mph (62.38 km/h) |
| 45 mph (72.42 km/h) | 43.6 mph (70.17 km/h) |
| 50 mph (80.47 km/h) | 48.45 mph (77.97 km/h) |
| 55 mph (88.51 km/h) | 53.29 mph (85.77 km/h) |
| 60 mph (96.56 km/h) | 58.14 mph (93.56 km/h) |
| 65 mph (104.61 km/h) | 62.98 mph (101.36 km/h) |
| 70 mph (112.65 km/h) | 67.83 mph (109.16 km/h) |
| 75 mph (120.7 km/h) | 72.67 mph (116.96 km/h) |
| 80 mph (128.75 km/h) | 77.52 mph (124.75 km/h) |
| 85 mph (136.79 km/h) | 82.36 mph (132.55 km/h) |
| 90 mph (144.84 km/h) | 87.21 mph (140.35 km/h) |
| 95 mph (152.89 km/h) | 92.05 mph (148.14 km/h) |
| 100 mph (160.93 km/h) | 96.9 mph (155.94 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
