Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/60-13 | 155/30-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 19.85 (504.2) | 16.66 (423.2) | -3.19 (-81) -16.1% |
| Width inches (mm) | 5.71 (145) | 6.1 (155) | 0.39 (10) 6.9% |
| Circum. inches (mm) | 62.36 (1583.99) | 52.34 (1329.52) | -10.02 (-254.47) -16.1% |
| Sidewall Height inches (mm) | 3.43 (87) | 1.83 (46.5) | -1.59 (-40.5) -46.6% |
| Revolutions per mile (km) | 1016.01 (631.32) | 1210.47 (752.15) | 194.46 (120.83) 19.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 16.79 mph (27.02 km/h) |
| 25 mph (40.23 km/h) | 20.98 mph (33.77 km/h) |
| 30 mph (48.28 km/h) | 25.18 mph (40.52 km/h) |
| 35 mph (56.33 km/h) | 29.38 mph (47.28 km/h) |
| 40 mph (64.37 km/h) | 33.57 mph (54.03 km/h) |
| 45 mph (72.42 km/h) | 37.77 mph (60.79 km/h) |
| 50 mph (80.47 km/h) | 41.97 mph (67.54 km/h) |
| 55 mph (88.51 km/h) | 46.16 mph (74.29 km/h) |
| 60 mph (96.56 km/h) | 50.36 mph (81.05 km/h) |
| 65 mph (104.61 km/h) | 54.56 mph (87.8 km/h) |
| 70 mph (112.65 km/h) | 58.75 mph (94.56 km/h) |
| 75 mph (120.7 km/h) | 62.95 mph (101.31 km/h) |
| 80 mph (128.75 km/h) | 67.15 mph (108.06 km/h) |
| 85 mph (136.79 km/h) | 71.34 mph (114.82 km/h) |
| 90 mph (144.84 km/h) | 75.54 mph (121.57 km/h) |
| 95 mph (152.89 km/h) | 79.74 mph (128.33 km/h) |
| 100 mph (160.93 km/h) | 83.93 mph (135.08 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
