Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/70-14 | 185/60-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.65 (600.6) | 23.74 (603) | 0.09 (2.4) 0.4% |
| Width inches (mm) | 6.89 (175) | 7.28 (185) | 0.39 (10) 5.7% |
| Circum. inches (mm) | 74.29 (1886.84) | 74.58 (1894.38) | 0.3 (7.54) 0.4% |
| Sidewall Height inches (mm) | 4.82 (122.5) | 4.37 (111) | -0.45 (-11.5) -9.4% |
| Revolutions per mile (km) | 852.93 (529.99) | 849.54 (527.88) | -3.39 (-2.11) -0.4% |
185/60-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.08 mph (32.32 km/h) |
| 25 mph (40.23 km/h) | 25.1 mph (40.39 km/h) |
| 30 mph (48.28 km/h) | 30.12 mph (48.47 km/h) |
| 35 mph (56.33 km/h) | 35.14 mph (56.55 km/h) |
| 40 mph (64.37 km/h) | 40.16 mph (64.63 km/h) |
| 45 mph (72.42 km/h) | 45.18 mph (72.71 km/h) |
| 50 mph (80.47 km/h) | 50.2 mph (80.79 km/h) |
| 55 mph (88.51 km/h) | 55.22 mph (88.87 km/h) |
| 60 mph (96.56 km/h) | 60.24 mph (96.95 km/h) |
| 65 mph (104.61 km/h) | 65.26 mph (105.03 km/h) |
| 70 mph (112.65 km/h) | 70.28 mph (113.1 km/h) |
| 75 mph (120.7 km/h) | 75.3 mph (121.18 km/h) |
| 80 mph (128.75 km/h) | 80.32 mph (129.26 km/h) |
| 85 mph (136.79 km/h) | 85.34 mph (137.34 km/h) |
| 90 mph (144.84 km/h) | 90.36 mph (145.42 km/h) |
| 95 mph (152.89 km/h) | 95.38 mph (153.5 km/h) |
| 100 mph (160.93 km/h) | 100.4 mph (161.58 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
