Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/80-15 | 155/75-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.76 (629) | 23.15 (588.1) | -1.61 (-40.9) -6.5% |
| Width inches (mm) | 6.1 (155) | 6.1 (155) | 0 (0) 0% |
| Circum. inches (mm) | 77.8 (1976.06) | 72.74 (1847.57) | -5.06 (-128.49) -6.5% |
| Sidewall Height inches (mm) | 4.88 (124) | 4.58 (116.25) | -0.31 (-7.75) -6.3% |
| Revolutions per mile (km) | 814.42 (506.06) | 871.06 (541.25) | 56.64 (35.19) 7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.7 mph (30.09 km/h) |
| 25 mph (40.23 km/h) | 23.37 mph (37.62 km/h) |
| 30 mph (48.28 km/h) | 28.05 mph (45.14 km/h) |
| 35 mph (56.33 km/h) | 32.72 mph (52.66 km/h) |
| 40 mph (64.37 km/h) | 37.4 mph (60.19 km/h) |
| 45 mph (72.42 km/h) | 42.07 mph (67.71 km/h) |
| 50 mph (80.47 km/h) | 46.75 mph (75.24 km/h) |
| 55 mph (88.51 km/h) | 51.42 mph (82.76 km/h) |
| 60 mph (96.56 km/h) | 56.1 mph (90.28 km/h) |
| 65 mph (104.61 km/h) | 60.77 mph (97.81 km/h) |
| 70 mph (112.65 km/h) | 65.45 mph (105.33 km/h) |
| 75 mph (120.7 km/h) | 70.12 mph (112.85 km/h) |
| 80 mph (128.75 km/h) | 74.8 mph (120.38 km/h) |
| 85 mph (136.79 km/h) | 79.47 mph (127.9 km/h) |
| 90 mph (144.84 km/h) | 84.15 mph (135.42 km/h) |
| 95 mph (152.89 km/h) | 88.82 mph (142.95 km/h) |
| 100 mph (160.93 km/h) | 93.5 mph (150.47 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2217 | 2575 | 2773 | 2896 | 3028 | 3122 | 3226 | 3349 | 3518 | 3688 | 3877 | 4028 | 4301 | 4603 | 4839 | 4990 | 5075 | 5386 | 5820 | 6763 |
Better Fuel Economy Factory Ratios Increased Power
