Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 345/35-19 | 365/65-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.51 (724.1) | 36.68 (931.7) | 8.17 (207.6) 28.7% |
| Width inches (mm) | 13.58 (345) | 14.37 (365) | 0.79 (20) 5.8% |
| Circum. inches (mm) | 89.56 (2274.83) | 115.24 (2927.02) | 25.68 (652.19) 28.7% |
| Sidewall Height inches (mm) | 4.75 (120.75) | 9.34 (237.25) | 4.59 (116.5) 96.5% |
| Revolutions per mile (km) | 707.46 (439.59) | 549.82 (341.64) | -157.63 (-97.95) -22.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 25.73 mph (41.41 km/h) |
| 25 mph (40.23 km/h) | 32.17 mph (51.77 km/h) |
| 30 mph (48.28 km/h) | 38.6 mph (62.12 km/h) |
| 35 mph (56.33 km/h) | 45.03 mph (72.48 km/h) |
| 40 mph (64.37 km/h) | 51.47 mph (82.83 km/h) |
| 45 mph (72.42 km/h) | 57.9 mph (93.18 km/h) |
| 50 mph (80.47 km/h) | 64.34 mph (103.54 km/h) |
| 55 mph (88.51 km/h) | 70.77 mph (113.89 km/h) |
| 60 mph (96.56 km/h) | 77.2 mph (124.24 km/h) |
| 65 mph (104.61 km/h) | 83.64 mph (134.6 km/h) |
| 70 mph (112.65 km/h) | 90.07 mph (144.95 km/h) |
| 75 mph (120.7 km/h) | 96.5 mph (155.31 km/h) |
| 80 mph (128.75 km/h) | 102.94 mph (165.66 km/h) |
| 85 mph (136.79 km/h) | 109.37 mph (176.01 km/h) |
| 90 mph (144.84 km/h) | 115.8 mph (186.37 km/h) |
| 95 mph (152.89 km/h) | 122.24 mph (196.72 km/h) |
| 100 mph (160.93 km/h) | 128.67 mph (207.07 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1399 | 1625 | 1750 | 1828 | 1911 | 1971 | 2036 | 2114 | 2221 | 2328 | 2447 | 2542 | 2715 | 2906 | 3054 | 3150 | 3203 | 3400 | 3674 | 4269 |
Better Fuel Economy Factory Ratios Increased Power
