Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/70-18 | 395/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.44 (646.2) | 38.77 (984.8) | 13.33 (338.6) 52.4% |
| Width inches (mm) | 5.31 (135) | 15.55 (395) | 10.24 (260) 192.6% |
| Circum. inches (mm) | 79.93 (2030.1) | 121.8 (3093.84) | 41.88 (1063.74) 52.4% |
| Sidewall Height inches (mm) | 3.72 (94.5) | 10.89 (276.5) | 7.17 (182) 192.6% |
| Revolutions per mile (km) | 792.74 (492.59) | 520.18 (323.22) | -272.57 (-169.36) -34.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 30.48 mph (49.05 km/h) |
| 25 mph (40.23 km/h) | 38.1 mph (61.32 km/h) |
| 30 mph (48.28 km/h) | 45.72 mph (73.58 km/h) |
| 35 mph (56.33 km/h) | 53.34 mph (85.84 km/h) |
| 40 mph (64.37 km/h) | 60.96 mph (98.1 km/h) |
| 45 mph (72.42 km/h) | 68.58 mph (110.37 km/h) |
| 50 mph (80.47 km/h) | 76.2 mph (122.63 km/h) |
| 55 mph (88.51 km/h) | 83.82 mph (134.89 km/h) |
| 60 mph (96.56 km/h) | 91.44 mph (147.16 km/h) |
| 65 mph (104.61 km/h) | 99.06 mph (159.42 km/h) |
| 70 mph (112.65 km/h) | 106.68 mph (171.68 km/h) |
| 75 mph (120.7 km/h) | 114.3 mph (183.95 km/h) |
| 80 mph (128.75 km/h) | 121.92 mph (196.21 km/h) |
| 85 mph (136.79 km/h) | 129.54 mph (208.47 km/h) |
| 90 mph (144.84 km/h) | 137.16 mph (220.74 km/h) |
| 95 mph (152.89 km/h) | 144.78 mph (233 km/h) |
| 100 mph (160.93 km/h) | 152.4 mph (245.26 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1324 | 1538 | 1656 | 1729 | 1808 | 1865 | 1926 | 2000 | 2101 | 2202 | 2315 | 2405 | 2569 | 2749 | 2890 | 2980 | 3031 | 3216 | 3476 | 4039 |
Better Fuel Economy Factory Ratios Increased Power
