Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/45-19 | 265/40-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.04 (712.1) | 27.35 (694.6) | -0.69 (-17.5) -2.5% |
| Width inches (mm) | 10.04 (255) | 10.43 (265) | 0.39 (10) 3.9% |
| Circum. inches (mm) | 88.08 (2237.13) | 85.91 (2182.15) | -2.16 (-54.98) -2.5% |
| Sidewall Height inches (mm) | 4.52 (114.75) | 4.17 (106) | -0.34 (-8.75) -7.6% |
| Revolutions per mile (km) | 719.38 (447) | 737.5 (458.26) | 18.12 (11.26) 2.5% |
265/40-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.51 mph (31.4 km/h) |
| 25 mph (40.23 km/h) | 24.39 mph (39.24 km/h) |
| 30 mph (48.28 km/h) | 29.26 mph (47.09 km/h) |
| 35 mph (56.33 km/h) | 34.14 mph (54.94 km/h) |
| 40 mph (64.37 km/h) | 39.02 mph (62.79 km/h) |
| 45 mph (72.42 km/h) | 43.89 mph (70.64 km/h) |
| 50 mph (80.47 km/h) | 48.77 mph (78.49 km/h) |
| 55 mph (88.51 km/h) | 53.65 mph (86.34 km/h) |
| 60 mph (96.56 km/h) | 58.53 mph (94.19 km/h) |
| 65 mph (104.61 km/h) | 63.4 mph (102.04 km/h) |
| 70 mph (112.65 km/h) | 68.28 mph (109.89 km/h) |
| 75 mph (120.7 km/h) | 73.16 mph (117.73 km/h) |
| 80 mph (128.75 km/h) | 78.03 mph (125.58 km/h) |
| 85 mph (136.79 km/h) | 82.91 mph (133.43 km/h) |
| 90 mph (144.84 km/h) | 87.79 mph (141.28 km/h) |
| 95 mph (152.89 km/h) | 92.67 mph (149.13 km/h) |
| 100 mph (160.93 km/h) | 97.54 mph (156.98 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
