Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/75-13 | 175/85-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.93 (607.7) | 24.71 (627.7) | 0.79 (20) 3.3% |
| Width inches (mm) | 7.28 (185) | 6.89 (175) | -0.39 (-10) -5.4% |
| Circum. inches (mm) | 75.16 (1909.15) | 77.64 (1971.98) | 2.47 (62.83) 3.3% |
| Sidewall Height inches (mm) | 5.46 (138.75) | 5.86 (148.75) | 0.39 (10) 7.2% |
| Revolutions per mile (km) | 842.97 (523.79) | 816.11 (507.1) | -26.86 (-16.69) -3.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.66 mph (33.25 km/h) |
| 25 mph (40.23 km/h) | 25.82 mph (41.56 km/h) |
| 30 mph (48.28 km/h) | 30.99 mph (49.87 km/h) |
| 35 mph (56.33 km/h) | 36.15 mph (58.18 km/h) |
| 40 mph (64.37 km/h) | 41.32 mph (66.49 km/h) |
| 45 mph (72.42 km/h) | 46.48 mph (74.8 km/h) |
| 50 mph (80.47 km/h) | 51.65 mph (83.12 km/h) |
| 55 mph (88.51 km/h) | 56.81 mph (91.43 km/h) |
| 60 mph (96.56 km/h) | 61.97 mph (99.74 km/h) |
| 65 mph (104.61 km/h) | 67.14 mph (108.05 km/h) |
| 70 mph (112.65 km/h) | 72.3 mph (116.36 km/h) |
| 75 mph (120.7 km/h) | 77.47 mph (124.67 km/h) |
| 80 mph (128.75 km/h) | 82.63 mph (132.98 km/h) |
| 85 mph (136.79 km/h) | 87.8 mph (141.3 km/h) |
| 90 mph (144.84 km/h) | 92.96 mph (149.61 km/h) |
| 95 mph (152.89 km/h) | 98.13 mph (157.92 km/h) |
| 100 mph (160.93 km/h) | 103.29 mph (166.23 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2077 | 2413 | 2598 | 2713 | 2837 | 2925 | 3022 | 3137 | 3296 | 3456 | 3632 | 3774 | 4030 | 4313 | 4534 | 4675 | 4755 | 5046 | 5453 | 6337 |
Better Fuel Economy Factory Ratios Increased Power
