Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 120/80-14 | 90/90-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.56 (547.6) | 20.38 (517.6) | -1.18 (-30) -5.5% |
| Width inches (mm) | 4.72 (120) | 3.54 (90) | -1.18 (-30) -25% |
| Circum. inches (mm) | 67.73 (1720.34) | 64.02 (1626.09) | -3.71 (-94.25) -5.5% |
| Sidewall Height inches (mm) | 3.78 (96) | 3.19 (81) | -0.59 (-15) -15.6% |
| Revolutions per mile (km) | 935.48 (581.28) | 989.7 (614.97) | 54.22 (33.69) 5.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.9 mph (30.42 km/h) |
| 25 mph (40.23 km/h) | 23.63 mph (38.03 km/h) |
| 30 mph (48.28 km/h) | 28.36 mph (45.64 km/h) |
| 35 mph (56.33 km/h) | 33.08 mph (53.24 km/h) |
| 40 mph (64.37 km/h) | 37.81 mph (60.85 km/h) |
| 45 mph (72.42 km/h) | 42.53 mph (68.45 km/h) |
| 50 mph (80.47 km/h) | 47.26 mph (76.06 km/h) |
| 55 mph (88.51 km/h) | 51.99 mph (83.66 km/h) |
| 60 mph (96.56 km/h) | 56.71 mph (91.27 km/h) |
| 65 mph (104.61 km/h) | 61.44 mph (98.88 km/h) |
| 70 mph (112.65 km/h) | 66.17 mph (106.48 km/h) |
| 75 mph (120.7 km/h) | 70.89 mph (114.09 km/h) |
| 80 mph (128.75 km/h) | 75.62 mph (121.69 km/h) |
| 85 mph (136.79 km/h) | 80.34 mph (129.3 km/h) |
| 90 mph (144.84 km/h) | 85.07 mph (136.91 km/h) |
| 95 mph (152.89 km/h) | 89.8 mph (144.51 km/h) |
| 100 mph (160.93 km/h) | 94.52 mph (152.12 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
