Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 130/80-15 | 445/20-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.19 (589) | 22.01 (559) | -1.18 (-30) -5.1% |
| Width inches (mm) | 5.12 (130) | 17.52 (445) | 12.4 (315) 242.3% |
| Circum. inches (mm) | 72.85 (1850.4) | 69.14 (1756.15) | -3.71 (-94.25) -5.1% |
| Sidewall Height inches (mm) | 4.09 (104) | 3.5 (89) | -0.59 (-15) -14.4% |
| Revolutions per mile (km) | 869.73 (540.42) | 916.4 (569.43) | 46.68 (29) 5.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.98 mph (30.55 km/h) |
| 25 mph (40.23 km/h) | 23.73 mph (38.18 km/h) |
| 30 mph (48.28 km/h) | 28.47 mph (45.82 km/h) |
| 35 mph (56.33 km/h) | 33.22 mph (53.46 km/h) |
| 40 mph (64.37 km/h) | 37.96 mph (61.1 km/h) |
| 45 mph (72.42 km/h) | 42.71 mph (68.73 km/h) |
| 50 mph (80.47 km/h) | 47.45 mph (76.37 km/h) |
| 55 mph (88.51 km/h) | 52.2 mph (84.01 km/h) |
| 60 mph (96.56 km/h) | 56.94 mph (91.64 km/h) |
| 65 mph (104.61 km/h) | 61.69 mph (99.28 km/h) |
| 70 mph (112.65 km/h) | 66.43 mph (106.92 km/h) |
| 75 mph (120.7 km/h) | 71.18 mph (114.55 km/h) |
| 80 mph (128.75 km/h) | 75.93 mph (122.19 km/h) |
| 85 mph (136.79 km/h) | 80.67 mph (129.83 km/h) |
| 90 mph (144.84 km/h) | 85.42 mph (137.46 km/h) |
| 95 mph (152.89 km/h) | 90.16 mph (145.1 km/h) |
| 100 mph (160.93 km/h) | 94.91 mph (152.74 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2332 | 2709 | 2918 | 3047 | 3186 | 3285 | 3394 | 3523 | 3702 | 3880 | 4079 | 4237 | 4525 | 4843 | 5091 | 5250 | 5339 | 5666 | 6123 | 7115 |
Better Fuel Economy Factory Ratios Increased Power
