Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/75-13 | 175/75-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.93 (607.7) | 23.33 (592.7) | -0.59 (-15) -2.5% |
| Width inches (mm) | 7.28 (185) | 6.89 (175) | -0.39 (-10) -5.4% |
| Circum. inches (mm) | 75.16 (1909.15) | 73.31 (1862.02) | -1.86 (-47.12) -2.5% |
| Sidewall Height inches (mm) | 5.46 (138.75) | 5.17 (131.25) | -0.3 (-7.5) -5.4% |
| Revolutions per mile (km) | 842.97 (523.79) | 864.3 (537.05) | 21.33 (13.26) 2.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.51 mph (31.39 km/h) |
| 25 mph (40.23 km/h) | 24.38 mph (39.24 km/h) |
| 30 mph (48.28 km/h) | 29.26 mph (47.09 km/h) |
| 35 mph (56.33 km/h) | 34.14 mph (54.94 km/h) |
| 40 mph (64.37 km/h) | 39.01 mph (62.78 km/h) |
| 45 mph (72.42 km/h) | 43.89 mph (70.63 km/h) |
| 50 mph (80.47 km/h) | 48.77 mph (78.48 km/h) |
| 55 mph (88.51 km/h) | 53.64 mph (86.33 km/h) |
| 60 mph (96.56 km/h) | 58.52 mph (94.18 km/h) |
| 65 mph (104.61 km/h) | 63.4 mph (102.03 km/h) |
| 70 mph (112.65 km/h) | 68.27 mph (109.87 km/h) |
| 75 mph (120.7 km/h) | 73.15 mph (117.72 km/h) |
| 80 mph (128.75 km/h) | 78.03 mph (125.57 km/h) |
| 85 mph (136.79 km/h) | 82.9 mph (133.42 km/h) |
| 90 mph (144.84 km/h) | 87.78 mph (141.27 km/h) |
| 95 mph (152.89 km/h) | 92.66 mph (149.11 km/h) |
| 100 mph (160.93 km/h) | 97.53 mph (156.96 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2199 | 2555 | 2752 | 2873 | 3004 | 3098 | 3201 | 3323 | 3491 | 3660 | 3847 | 3996 | 4268 | 4567 | 4801 | 4951 | 5035 | 5344 | 5775 | 6711 |
Better Fuel Economy Factory Ratios Increased Power
