Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 130/80-15 | 180/30-10 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.19 (589) | 14.25 (362) | -8.94 (-227) -38.5% |
| Width inches (mm) | 5.12 (130) | 7.09 (180) | 1.97 (50) 38.5% |
| Circum. inches (mm) | 72.85 (1850.4) | 44.77 (1137.26) | -28.08 (-713.14) -38.5% |
| Sidewall Height inches (mm) | 4.09 (104) | 2.13 (54) | -1.97 (-50) -48.1% |
| Revolutions per mile (km) | 869.73 (540.42) | 1415.11 (879.31) | 545.38 (338.88) 62.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 12.29 mph (19.78 km/h) |
| 25 mph (40.23 km/h) | 15.37 mph (24.73 km/h) |
| 30 mph (48.28 km/h) | 18.44 mph (29.67 km/h) |
| 35 mph (56.33 km/h) | 21.51 mph (34.62 km/h) |
| 40 mph (64.37 km/h) | 24.58 mph (39.56 km/h) |
| 45 mph (72.42 km/h) | 27.66 mph (44.51 km/h) |
| 50 mph (80.47 km/h) | 30.73 mph (49.46 km/h) |
| 55 mph (88.51 km/h) | 33.8 mph (54.4 km/h) |
| 60 mph (96.56 km/h) | 36.88 mph (59.35 km/h) |
| 65 mph (104.61 km/h) | 39.95 mph (64.29 km/h) |
| 70 mph (112.65 km/h) | 43.02 mph (69.24 km/h) |
| 75 mph (120.7 km/h) | 46.1 mph (74.18 km/h) |
| 80 mph (128.75 km/h) | 49.17 mph (79.13 km/h) |
| 85 mph (136.79 km/h) | 52.24 mph (84.07 km/h) |
| 90 mph (144.84 km/h) | 55.31 mph (89.02 km/h) |
| 95 mph (152.89 km/h) | 58.39 mph (93.97 km/h) |
| 100 mph (160.93 km/h) | 61.46 mph (98.91 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
