Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/30-18 | 285/35-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.73 (628.2) | 24.85 (631.3) | 0.12 (3.1) 0.5% |
| Width inches (mm) | 11.22 (285) | 11.22 (285) | 0 (0) 0% |
| Circum. inches (mm) | 77.7 (1973.55) | 78.08 (1983.29) | 0.38 (9.74) 0.5% |
| Sidewall Height inches (mm) | 3.37 (85.5) | 3.93 (99.75) | 0.56 (14.25) 16.7% |
| Revolutions per mile (km) | 815.46 (506.7) | 811.45 (504.21) | -4 (-2.49) -0.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.1 mph (32.35 km/h) |
| 25 mph (40.23 km/h) | 25.12 mph (40.43 km/h) |
| 30 mph (48.28 km/h) | 30.15 mph (48.52 km/h) |
| 35 mph (56.33 km/h) | 35.17 mph (56.61 km/h) |
| 40 mph (64.37 km/h) | 40.2 mph (64.69 km/h) |
| 45 mph (72.42 km/h) | 45.22 mph (72.78 km/h) |
| 50 mph (80.47 km/h) | 50.25 mph (80.86 km/h) |
| 55 mph (88.51 km/h) | 55.27 mph (88.95 km/h) |
| 60 mph (96.56 km/h) | 60.3 mph (97.04 km/h) |
| 65 mph (104.61 km/h) | 65.32 mph (105.12 km/h) |
| 70 mph (112.65 km/h) | 70.35 mph (113.21 km/h) |
| 75 mph (120.7 km/h) | 75.37 mph (121.3 km/h) |
| 80 mph (128.75 km/h) | 80.39 mph (129.38 km/h) |
| 85 mph (136.79 km/h) | 85.42 mph (137.47 km/h) |
| 90 mph (144.84 km/h) | 90.44 mph (145.56 km/h) |
| 95 mph (152.89 km/h) | 95.47 mph (153.64 km/h) |
| 100 mph (160.93 km/h) | 100.49 mph (161.73 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2065 | 2399 | 2583 | 2698 | 2821 | 2909 | 3005 | 3119 | 3278 | 3436 | 3612 | 3752 | 4007 | 4288 | 4508 | 4648 | 4728 | 5017 | 5422 | 6300 |
Better Fuel Economy Factory Ratios Increased Power
