Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/50-15 | 185/60-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.28 (566) | 23.74 (603) | 1.46 (37) 6.5% |
| Width inches (mm) | 7.28 (185) | 7.28 (185) | 0 (0) 0% |
| Circum. inches (mm) | 70.01 (1778.14) | 74.58 (1894.38) | 4.58 (116.24) 6.5% |
| Sidewall Height inches (mm) | 3.64 (92.5) | 4.37 (111) | 0.73 (18.5) 20% |
| Revolutions per mile (km) | 905.07 (562.38) | 849.54 (527.88) | -55.54 (-34.51) -6.1% |
185/60-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.31 mph (34.29 km/h) |
| 25 mph (40.23 km/h) | 26.63 mph (42.86 km/h) |
| 30 mph (48.28 km/h) | 31.96 mph (51.44 km/h) |
| 35 mph (56.33 km/h) | 37.29 mph (60.01 km/h) |
| 40 mph (64.37 km/h) | 42.61 mph (68.58 km/h) |
| 45 mph (72.42 km/h) | 47.94 mph (77.15 km/h) |
| 50 mph (80.47 km/h) | 53.27 mph (85.73 km/h) |
| 55 mph (88.51 km/h) | 58.6 mph (94.3 km/h) |
| 60 mph (96.56 km/h) | 63.92 mph (102.87 km/h) |
| 65 mph (104.61 km/h) | 69.25 mph (111.45 km/h) |
| 70 mph (112.65 km/h) | 74.58 mph (120.02 km/h) |
| 75 mph (120.7 km/h) | 79.9 mph (128.59 km/h) |
| 80 mph (128.75 km/h) | 85.23 mph (137.16 km/h) |
| 85 mph (136.79 km/h) | 90.56 mph (145.74 km/h) |
| 90 mph (144.84 km/h) | 95.88 mph (154.31 km/h) |
| 95 mph (152.89 km/h) | 101.21 mph (162.88 km/h) |
| 100 mph (160.93 km/h) | 106.54 mph (171.46 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2162 | 2511 | 2705 | 2824 | 2953 | 3045 | 3146 | 3266 | 3431 | 3597 | 3781 | 3928 | 4195 | 4489 | 4719 | 4867 | 4949 | 5253 | 5676 | 6596 |
Better Fuel Economy Factory Ratios Increased Power
