Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/70-13 | 155/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.44 (519.2) | 23.54 (598) | 3.1 (78.8) 15.2% |
| Width inches (mm) | 5.31 (135) | 6.1 (155) | 0.79 (20) 14.8% |
| Circum. inches (mm) | 64.22 (1631.11) | 73.96 (1878.67) | 9.75 (247.56) 15.2% |
| Sidewall Height inches (mm) | 3.72 (94.5) | 4.27 (108.5) | 0.55 (14) 14.8% |
| Revolutions per mile (km) | 986.65 (613.08) | 856.64 (532.29) | -130.01 (-80.79) -13.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.04 mph (37.07 km/h) |
| 25 mph (40.23 km/h) | 28.79 mph (46.34 km/h) |
| 30 mph (48.28 km/h) | 34.55 mph (55.61 km/h) |
| 35 mph (56.33 km/h) | 40.31 mph (64.88 km/h) |
| 40 mph (64.37 km/h) | 46.07 mph (74.14 km/h) |
| 45 mph (72.42 km/h) | 51.83 mph (83.41 km/h) |
| 50 mph (80.47 km/h) | 57.59 mph (92.68 km/h) |
| 55 mph (88.51 km/h) | 63.35 mph (101.95 km/h) |
| 60 mph (96.56 km/h) | 69.11 mph (111.22 km/h) |
| 65 mph (104.61 km/h) | 74.87 mph (120.48 km/h) |
| 70 mph (112.65 km/h) | 80.62 mph (129.75 km/h) |
| 75 mph (120.7 km/h) | 86.38 mph (139.02 km/h) |
| 80 mph (128.75 km/h) | 92.14 mph (148.29 km/h) |
| 85 mph (136.79 km/h) | 97.9 mph (157.56 km/h) |
| 90 mph (144.84 km/h) | 103.66 mph (166.82 km/h) |
| 95 mph (152.89 km/h) | 109.42 mph (176.09 km/h) |
| 100 mph (160.93 km/h) | 115.18 mph (185.36 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2180 | 2532 | 2727 | 2848 | 2978 | 3071 | 3173 | 3293 | 3460 | 3627 | 3813 | 3961 | 4230 | 4527 | 4759 | 4907 | 4991 | 5297 | 5724 | 6651 |
Better Fuel Economy Factory Ratios Increased Power
