Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 180/80-13 | 195/70-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.34 (618.2) | 23.75 (603.2) | -0.59 (-15) -2.4% |
| Width inches (mm) | 7.09 (180) | 7.68 (195) | 0.59 (15) 8.3% |
| Circum. inches (mm) | 76.46 (1942.13) | 74.61 (1895.01) | -1.86 (-47.12) -2.4% |
| Sidewall Height inches (mm) | 5.67 (144) | 5.37 (136.5) | -0.3 (-7.5) -5.2% |
| Revolutions per mile (km) | 828.65 (514.9) | 849.25 (527.7) | 20.61 (12.8) 2.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.51 mph (31.41 km/h) |
| 25 mph (40.23 km/h) | 24.39 mph (39.26 km/h) |
| 30 mph (48.28 km/h) | 29.27 mph (47.11 km/h) |
| 35 mph (56.33 km/h) | 34.15 mph (54.96 km/h) |
| 40 mph (64.37 km/h) | 39.03 mph (62.81 km/h) |
| 45 mph (72.42 km/h) | 43.91 mph (70.66 km/h) |
| 50 mph (80.47 km/h) | 48.79 mph (78.51 km/h) |
| 55 mph (88.51 km/h) | 53.67 mph (86.37 km/h) |
| 60 mph (96.56 km/h) | 58.54 mph (94.22 km/h) |
| 65 mph (104.61 km/h) | 63.42 mph (102.07 km/h) |
| 70 mph (112.65 km/h) | 68.3 mph (109.92 km/h) |
| 75 mph (120.7 km/h) | 73.18 mph (117.77 km/h) |
| 80 mph (128.75 km/h) | 78.06 mph (125.62 km/h) |
| 85 mph (136.79 km/h) | 82.94 mph (133.48 km/h) |
| 90 mph (144.84 km/h) | 87.82 mph (141.33 km/h) |
| 95 mph (152.89 km/h) | 92.69 mph (149.18 km/h) |
| 100 mph (160.93 km/h) | 97.57 mph (157.03 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2161 | 2511 | 2704 | 2823 | 2952 | 3044 | 3145 | 3265 | 3430 | 3596 | 3780 | 3927 | 4194 | 4488 | 4718 | 4865 | 4948 | 5251 | 5674 | 6594 |
Better Fuel Economy Factory Ratios Increased Power
