Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 365/75-16 | 325/85-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 37.56 (953.9) | 36.75 (933.5) | -0.8 (-20.4) -2.1% |
| Width inches (mm) | 14.37 (365) | 12.8 (325) | -1.57 (-40) -11% |
| Circum. inches (mm) | 117.98 (2996.77) | 115.46 (2932.68) | -2.52 (-64.09) -2.1% |
| Sidewall Height inches (mm) | 10.78 (273.75) | 10.88 (276.25) | 0.1 (2.5) 0.9% |
| Revolutions per mile (km) | 537.03 (333.69) | 548.76 (340.98) | 11.74 (7.29) 2.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.57 mph (31.5 km/h) |
| 25 mph (40.23 km/h) | 24.47 mph (39.37 km/h) |
| 30 mph (48.28 km/h) | 29.36 mph (47.25 km/h) |
| 35 mph (56.33 km/h) | 34.25 mph (55.12 km/h) |
| 40 mph (64.37 km/h) | 39.14 mph (63 km/h) |
| 45 mph (72.42 km/h) | 44.04 mph (70.87 km/h) |
| 50 mph (80.47 km/h) | 48.93 mph (78.75 km/h) |
| 55 mph (88.51 km/h) | 53.82 mph (86.62 km/h) |
| 60 mph (96.56 km/h) | 58.72 mph (94.5 km/h) |
| 65 mph (104.61 km/h) | 63.61 mph (102.37 km/h) |
| 70 mph (112.65 km/h) | 68.5 mph (110.25 km/h) |
| 75 mph (120.7 km/h) | 73.4 mph (118.12 km/h) |
| 80 mph (128.75 km/h) | 78.29 mph (125.99 km/h) |
| 85 mph (136.79 km/h) | 83.18 mph (133.87 km/h) |
| 90 mph (144.84 km/h) | 88.08 mph (141.74 km/h) |
| 95 mph (152.89 km/h) | 92.97 mph (149.62 km/h) |
| 100 mph (160.93 km/h) | 97.86 mph (157.49 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1396 | 1622 | 1747 | 1824 | 1908 | 1967 | 2032 | 2110 | 2217 | 2324 | 2442 | 2537 | 2710 | 2900 | 3049 | 3144 | 3197 | 3393 | 3667 | 4261 |
Better Fuel Economy Factory Ratios Increased Power
