Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/70-13 | 170/75-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.44 (519.2) | 23.04 (585.2) | 2.6 (66) 12.7% |
| Width inches (mm) | 5.31 (135) | 6.69 (170) | 1.38 (35) 25.9% |
| Circum. inches (mm) | 64.22 (1631.11) | 72.38 (1838.46) | 8.16 (207.35) 12.7% |
| Sidewall Height inches (mm) | 3.72 (94.5) | 5.02 (127.5) | 1.3 (33) 34.9% |
| Revolutions per mile (km) | 986.65 (613.08) | 875.38 (543.93) | -111.28 (-69.14) -11.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.54 mph (36.28 km/h) |
| 25 mph (40.23 km/h) | 28.18 mph (45.35 km/h) |
| 30 mph (48.28 km/h) | 33.81 mph (54.42 km/h) |
| 35 mph (56.33 km/h) | 39.45 mph (63.49 km/h) |
| 40 mph (64.37 km/h) | 45.08 mph (72.56 km/h) |
| 45 mph (72.42 km/h) | 50.72 mph (81.63 km/h) |
| 50 mph (80.47 km/h) | 56.36 mph (90.7 km/h) |
| 55 mph (88.51 km/h) | 61.99 mph (99.77 km/h) |
| 60 mph (96.56 km/h) | 67.63 mph (108.84 km/h) |
| 65 mph (104.61 km/h) | 73.26 mph (117.91 km/h) |
| 70 mph (112.65 km/h) | 78.9 mph (126.97 km/h) |
| 75 mph (120.7 km/h) | 84.53 mph (136.04 km/h) |
| 80 mph (128.75 km/h) | 90.17 mph (145.11 km/h) |
| 85 mph (136.79 km/h) | 95.81 mph (154.18 km/h) |
| 90 mph (144.84 km/h) | 101.44 mph (163.25 km/h) |
| 95 mph (152.89 km/h) | 107.08 mph (172.32 km/h) |
| 100 mph (160.93 km/h) | 112.71 mph (181.39 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2228 | 2588 | 2787 | 2910 | 3043 | 3138 | 3242 | 3365 | 3536 | 3706 | 3896 | 4048 | 4323 | 4626 | 4863 | 5015 | 5100 | 5413 | 5849 | 6797 |
Better Fuel Economy Factory Ratios Increased Power
