Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/25-19 | 265/40-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25 (635.1) | 27.35 (694.6) | 2.34 (59.5) 9.4% |
| Width inches (mm) | 12.01 (305) | 10.43 (265) | -1.57 (-40) -13.1% |
| Circum. inches (mm) | 78.55 (1995.23) | 85.91 (2182.15) | 7.36 (186.92) 9.4% |
| Sidewall Height inches (mm) | 3 (76.25) | 4.17 (106) | 1.17 (29.75) 39% |
| Revolutions per mile (km) | 806.6 (501.2) | 737.5 (458.26) | -69.09 (-42.93) -8.6% |
265/40-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.87 mph (35.2 km/h) |
| 25 mph (40.23 km/h) | 27.34 mph (44 km/h) |
| 30 mph (48.28 km/h) | 32.81 mph (52.8 km/h) |
| 35 mph (56.33 km/h) | 38.28 mph (61.6 km/h) |
| 40 mph (64.37 km/h) | 43.75 mph (70.4 km/h) |
| 45 mph (72.42 km/h) | 49.22 mph (79.21 km/h) |
| 50 mph (80.47 km/h) | 54.68 mph (88.01 km/h) |
| 55 mph (88.51 km/h) | 60.15 mph (96.81 km/h) |
| 60 mph (96.56 km/h) | 65.62 mph (105.61 km/h) |
| 65 mph (104.61 km/h) | 71.09 mph (114.41 km/h) |
| 70 mph (112.65 km/h) | 76.56 mph (123.21 km/h) |
| 75 mph (120.7 km/h) | 82.03 mph (132.01 km/h) |
| 80 mph (128.75 km/h) | 87.49 mph (140.81 km/h) |
| 85 mph (136.79 km/h) | 92.96 mph (149.61 km/h) |
| 90 mph (144.84 km/h) | 98.43 mph (158.41 km/h) |
| 95 mph (152.89 km/h) | 103.9 mph (167.21 km/h) |
| 100 mph (160.93 km/h) | 109.37 mph (176.01 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1877 | 2180 | 2348 | 2452 | 2564 | 2644 | 2731 | 2835 | 2979 | 3123 | 3282 | 3410 | 3642 | 3897 | 4097 | 4225 | 4297 | 4560 | 4928 | 5726 |
Better Fuel Economy Factory Ratios Increased Power
