Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/45-16 | 185/60-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.62 (599.9) | 23.74 (603) | 0.12 (3.1) 0.5% |
| Width inches (mm) | 8.46 (215) | 7.28 (185) | -1.18 (-30) -14% |
| Circum. inches (mm) | 74.2 (1884.64) | 74.58 (1894.38) | 0.38 (9.74) 0.5% |
| Sidewall Height inches (mm) | 3.81 (96.75) | 4.37 (111) | 0.56 (14.25) 14.7% |
| Revolutions per mile (km) | 853.93 (530.6) | 849.54 (527.88) | -4.39 (-2.73) -0.5% |
185/60-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.1 mph (32.35 km/h) |
| 25 mph (40.23 km/h) | 25.13 mph (40.44 km/h) |
| 30 mph (48.28 km/h) | 30.16 mph (48.53 km/h) |
| 35 mph (56.33 km/h) | 35.18 mph (56.62 km/h) |
| 40 mph (64.37 km/h) | 40.21 mph (64.71 km/h) |
| 45 mph (72.42 km/h) | 45.23 mph (72.79 km/h) |
| 50 mph (80.47 km/h) | 50.26 mph (80.88 km/h) |
| 55 mph (88.51 km/h) | 55.28 mph (88.97 km/h) |
| 60 mph (96.56 km/h) | 60.31 mph (97.06 km/h) |
| 65 mph (104.61 km/h) | 65.34 mph (105.15 km/h) |
| 70 mph (112.65 km/h) | 70.36 mph (113.24 km/h) |
| 75 mph (120.7 km/h) | 75.39 mph (121.32 km/h) |
| 80 mph (128.75 km/h) | 80.41 mph (129.41 km/h) |
| 85 mph (136.79 km/h) | 85.44 mph (137.5 km/h) |
| 90 mph (144.84 km/h) | 90.47 mph (145.59 km/h) |
| 95 mph (152.89 km/h) | 95.49 mph (153.68 km/h) |
| 100 mph (160.93 km/h) | 100.52 mph (161.77 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
