Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/25-19 | 285/30-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.2 (640.1) | 25.73 (653.6) | 0.53 (13.5) 2.1% |
| Width inches (mm) | 12.4 (315) | 11.22 (285) | -1.18 (-30) -9.5% |
| Circum. inches (mm) | 79.17 (2010.93) | 80.84 (2053.34) | 1.67 (42.41) 2.1% |
| Sidewall Height inches (mm) | 3.1 (78.75) | 3.37 (85.5) | 0.27 (6.75) 8.6% |
| Revolutions per mile (km) | 800.3 (497.28) | 783.77 (487.01) | -16.53 (-10.27) -2.1% |
285/30-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.42 mph (32.87 km/h) |
| 25 mph (40.23 km/h) | 25.53 mph (41.08 km/h) |
| 30 mph (48.28 km/h) | 30.63 mph (49.3 km/h) |
| 35 mph (56.33 km/h) | 35.74 mph (57.52 km/h) |
| 40 mph (64.37 km/h) | 40.84 mph (65.73 km/h) |
| 45 mph (72.42 km/h) | 45.95 mph (73.95 km/h) |
| 50 mph (80.47 km/h) | 51.05 mph (82.16 km/h) |
| 55 mph (88.51 km/h) | 56.16 mph (90.38 km/h) |
| 60 mph (96.56 km/h) | 61.27 mph (98.6 km/h) |
| 65 mph (104.61 km/h) | 66.37 mph (106.81 km/h) |
| 70 mph (112.65 km/h) | 71.48 mph (115.03 km/h) |
| 75 mph (120.7 km/h) | 76.58 mph (123.25 km/h) |
| 80 mph (128.75 km/h) | 81.69 mph (131.46 km/h) |
| 85 mph (136.79 km/h) | 86.79 mph (139.68 km/h) |
| 90 mph (144.84 km/h) | 91.9 mph (147.9 km/h) |
| 95 mph (152.89 km/h) | 97 mph (156.11 km/h) |
| 100 mph (160.93 km/h) | 102.11 mph (164.33 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1995 | 2317 | 2495 | 2606 | 2724 | 2809 | 2903 | 3013 | 3166 | 3319 | 3488 | 3624 | 3870 | 4142 | 4354 | 4490 | 4566 | 4846 | 5237 | 6085 |
Better Fuel Economy Factory Ratios Increased Power
