Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/70-13 | 170/80-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.44 (519.2) | 23.71 (602.2) | 3.27 (83) 16% |
| Width inches (mm) | 5.31 (135) | 6.69 (170) | 1.38 (35) 25.9% |
| Circum. inches (mm) | 64.22 (1631.11) | 74.48 (1891.87) | 10.27 (260.75) 16% |
| Sidewall Height inches (mm) | 3.72 (94.5) | 5.35 (136) | 1.63 (41.5) 43.9% |
| Revolutions per mile (km) | 986.65 (613.08) | 850.66 (528.58) | -135.99 (-84.5) -13.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.2 mph (37.33 km/h) |
| 25 mph (40.23 km/h) | 29 mph (46.67 km/h) |
| 30 mph (48.28 km/h) | 34.8 mph (56 km/h) |
| 35 mph (56.33 km/h) | 40.6 mph (65.33 km/h) |
| 40 mph (64.37 km/h) | 46.39 mph (74.66 km/h) |
| 45 mph (72.42 km/h) | 52.19 mph (84 km/h) |
| 50 mph (80.47 km/h) | 57.99 mph (93.33 km/h) |
| 55 mph (88.51 km/h) | 63.79 mph (102.66 km/h) |
| 60 mph (96.56 km/h) | 69.59 mph (112 km/h) |
| 65 mph (104.61 km/h) | 75.39 mph (121.33 km/h) |
| 70 mph (112.65 km/h) | 81.19 mph (130.66 km/h) |
| 75 mph (120.7 km/h) | 86.99 mph (140 km/h) |
| 80 mph (128.75 km/h) | 92.79 mph (149.33 km/h) |
| 85 mph (136.79 km/h) | 98.59 mph (158.66 km/h) |
| 90 mph (144.84 km/h) | 104.39 mph (168 km/h) |
| 95 mph (152.89 km/h) | 110.19 mph (177.33 km/h) |
| 100 mph (160.93 km/h) | 115.99 mph (186.66 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2165 | 2515 | 2708 | 2828 | 2957 | 3049 | 3150 | 3270 | 3436 | 3602 | 3786 | 3933 | 4201 | 4495 | 4726 | 4873 | 4956 | 5260 | 5684 | 6605 |
Better Fuel Economy Factory Ratios Increased Power
