Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/70-18 | 275/100-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.44 (646.2) | 39.65 (1007.2) | 14.21 (361) 55.9% |
| Width inches (mm) | 5.31 (135) | 10.83 (275) | 5.51 (140) 103.7% |
| Circum. inches (mm) | 79.93 (2030.1) | 124.58 (3164.21) | 44.65 (1134.11) 55.9% |
| Sidewall Height inches (mm) | 3.72 (94.5) | 10.83 (275) | 7.11 (180.5) 191% |
| Revolutions per mile (km) | 792.74 (492.59) | 508.61 (316.03) | -284.13 (-176.55) -35.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 31.17 mph (50.17 km/h) |
| 25 mph (40.23 km/h) | 38.97 mph (62.71 km/h) |
| 30 mph (48.28 km/h) | 46.76 mph (75.25 km/h) |
| 35 mph (56.33 km/h) | 54.55 mph (87.79 km/h) |
| 40 mph (64.37 km/h) | 62.35 mph (100.34 km/h) |
| 45 mph (72.42 km/h) | 70.14 mph (112.88 km/h) |
| 50 mph (80.47 km/h) | 77.93 mph (125.42 km/h) |
| 55 mph (88.51 km/h) | 85.73 mph (137.96 km/h) |
| 60 mph (96.56 km/h) | 93.52 mph (150.5 km/h) |
| 65 mph (104.61 km/h) | 101.31 mph (163.05 km/h) |
| 70 mph (112.65 km/h) | 109.11 mph (175.59 km/h) |
| 75 mph (120.7 km/h) | 116.9 mph (188.13 km/h) |
| 80 mph (128.75 km/h) | 124.69 mph (200.67 km/h) |
| 85 mph (136.79 km/h) | 132.49 mph (213.21 km/h) |
| 90 mph (144.84 km/h) | 140.28 mph (225.76 km/h) |
| 95 mph (152.89 km/h) | 148.07 mph (238.3 km/h) |
| 100 mph (160.93 km/h) | 155.87 mph (250.84 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1294 | 1504 | 1619 | 1691 | 1768 | 1823 | 1884 | 1955 | 2054 | 2154 | 2264 | 2352 | 2512 | 2688 | 2825 | 2914 | 2963 | 3145 | 3398 | 3949 |
Better Fuel Economy Factory Ratios Increased Power
