Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/82-13 | 185/60-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.01 (584.4) | 21.74 (552.2) | -1.27 (-32.2) -5.5% |
| Width inches (mm) | 6.1 (155) | 7.28 (185) | 1.18 (30) 19.4% |
| Circum. inches (mm) | 72.28 (1835.95) | 68.3 (1734.79) | -3.98 (-101.16) -5.5% |
| Sidewall Height inches (mm) | 5 (127.1) | 4.37 (111) | -0.63 (-16.1) -12.7% |
| Revolutions per mile (km) | 876.57 (544.68) | 927.69 (576.44) | 51.11 (31.76) 5.8% |
185/60-13 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.9 mph (30.41 km/h) |
| 25 mph (40.23 km/h) | 23.62 mph (38.02 km/h) |
| 30 mph (48.28 km/h) | 28.35 mph (45.62 km/h) |
| 35 mph (56.33 km/h) | 33.07 mph (53.22 km/h) |
| 40 mph (64.37 km/h) | 37.8 mph (60.83 km/h) |
| 45 mph (72.42 km/h) | 42.52 mph (68.43 km/h) |
| 50 mph (80.47 km/h) | 47.25 mph (76.03 km/h) |
| 55 mph (88.51 km/h) | 51.97 mph (83.64 km/h) |
| 60 mph (96.56 km/h) | 56.69 mph (91.24 km/h) |
| 65 mph (104.61 km/h) | 61.42 mph (98.84 km/h) |
| 70 mph (112.65 km/h) | 66.14 mph (106.45 km/h) |
| 75 mph (120.7 km/h) | 70.87 mph (114.05 km/h) |
| 80 mph (128.75 km/h) | 75.59 mph (121.65 km/h) |
| 85 mph (136.79 km/h) | 80.32 mph (129.26 km/h) |
| 90 mph (144.84 km/h) | 85.04 mph (136.86 km/h) |
| 95 mph (152.89 km/h) | 89.77 mph (144.46 km/h) |
| 100 mph (160.93 km/h) | 94.49 mph (152.07 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
