Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/35-19 | 255/40-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.85 (682.1) | 27.03 (686.6) | 0.18 (4.5) 0.7% |
| Width inches (mm) | 11.22 (285) | 10.04 (255) | -1.18 (-30) -10.5% |
| Circum. inches (mm) | 84.37 (2142.88) | 84.92 (2157.02) | 0.56 (14.14) 0.7% |
| Sidewall Height inches (mm) | 3.93 (99.75) | 4.02 (102) | 0.09 (2.25) 2.3% |
| Revolutions per mile (km) | 751.02 (466.66) | 746.1 (463.6) | -4.92 (-3.06) -0.7% |
255/40-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.13 mph (32.4 km/h) |
| 25 mph (40.23 km/h) | 25.16 mph (40.5 km/h) |
| 30 mph (48.28 km/h) | 30.2 mph (48.6 km/h) |
| 35 mph (56.33 km/h) | 35.23 mph (56.7 km/h) |
| 40 mph (64.37 km/h) | 40.26 mph (64.8 km/h) |
| 45 mph (72.42 km/h) | 45.3 mph (72.9 km/h) |
| 50 mph (80.47 km/h) | 50.33 mph (81 km/h) |
| 55 mph (88.51 km/h) | 55.36 mph (89.1 km/h) |
| 60 mph (96.56 km/h) | 60.4 mph (97.2 km/h) |
| 65 mph (104.61 km/h) | 65.43 mph (105.3 km/h) |
| 70 mph (112.65 km/h) | 70.46 mph (113.4 km/h) |
| 75 mph (120.7 km/h) | 75.49 mph (121.5 km/h) |
| 80 mph (128.75 km/h) | 80.53 mph (129.6 km/h) |
| 85 mph (136.79 km/h) | 85.56 mph (137.7 km/h) |
| 90 mph (144.84 km/h) | 90.59 mph (145.8 km/h) |
| 95 mph (152.89 km/h) | 95.63 mph (153.9 km/h) |
| 100 mph (160.93 km/h) | 100.66 mph (162 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1899 | 2206 | 2375 | 2480 | 2594 | 2674 | 2763 | 2868 | 3014 | 3159 | 3321 | 3450 | 3684 | 3943 | 4145 | 4274 | 4347 | 4613 | 4985 | 5793 |
Better Fuel Economy Factory Ratios Increased Power
