Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 365/80-20 | 41/14.5-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 42.99 (1092) | 40.86 (1037.92) | -2.13 (-54.08) -5% |
| Width inches (mm) | 14.37 (365) | 14.49 (368) | 0.12 (3) 0.8% |
| Circum. inches (mm) | 135.06 (3430.62) | 128.37 (3260.72) | -6.69 (-169.9) -5% |
| Sidewall Height inches (mm) | 11.5 (292) | 10.43 (264.96) | -1.06 (-27.04) -9.3% |
| Revolutions per mile (km) | 469.11 (291.49) | 493.55 (306.68) | 24.44 (15.19) 5.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.01 mph (30.59 km/h) |
| 25 mph (40.23 km/h) | 23.76 mph (38.24 km/h) |
| 30 mph (48.28 km/h) | 28.51 mph (45.89 km/h) |
| 35 mph (56.33 km/h) | 33.27 mph (53.54 km/h) |
| 40 mph (64.37 km/h) | 38.02 mph (61.19 km/h) |
| 45 mph (72.42 km/h) | 42.77 mph (68.83 km/h) |
| 50 mph (80.47 km/h) | 47.52 mph (76.48 km/h) |
| 55 mph (88.51 km/h) | 52.28 mph (84.13 km/h) |
| 60 mph (96.56 km/h) | 57.03 mph (91.78 km/h) |
| 65 mph (104.61 km/h) | 61.78 mph (99.43 km/h) |
| 70 mph (112.65 km/h) | 66.53 mph (107.08 km/h) |
| 75 mph (120.7 km/h) | 71.29 mph (114.72 km/h) |
| 80 mph (128.75 km/h) | 76.04 mph (122.37 km/h) |
| 85 mph (136.79 km/h) | 80.79 mph (130.02 km/h) |
| 90 mph (144.84 km/h) | 85.54 mph (137.67 km/h) |
| 95 mph (152.89 km/h) | 90.3 mph (145.32 km/h) |
| 100 mph (160.93 km/h) | 95.05 mph (152.96 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1256 | 1459 | 1571 | 1641 | 1716 | 1769 | 1828 | 1897 | 1994 | 2090 | 2197 | 2282 | 2437 | 2608 | 2742 | 2827 | 2875 | 3052 | 3298 | 3832 |
Better Fuel Economy Factory Ratios Increased Power
