Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/60-16 | 185/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.74 (628.4) | 23.56 (598.3) | -1.19 (-30.1) -4.8% |
| Width inches (mm) | 7.28 (185) | 7.28 (185) | 0 (0) 0% |
| Circum. inches (mm) | 77.72 (1974.18) | 74 (1879.61) | -3.72 (-94.56) -4.8% |
| Sidewall Height inches (mm) | 4.37 (111) | 3.28 (83.25) | -1.09 (-27.75) -25% |
| Revolutions per mile (km) | 815.2 (506.54) | 856.21 (532.02) | 41.01 (25.48) 5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.04 mph (30.65 km/h) |
| 25 mph (40.23 km/h) | 23.8 mph (38.31 km/h) |
| 30 mph (48.28 km/h) | 28.56 mph (45.97 km/h) |
| 35 mph (56.33 km/h) | 33.32 mph (53.63 km/h) |
| 40 mph (64.37 km/h) | 38.08 mph (61.29 km/h) |
| 45 mph (72.42 km/h) | 42.84 mph (68.95 km/h) |
| 50 mph (80.47 km/h) | 47.61 mph (76.61 km/h) |
| 55 mph (88.51 km/h) | 52.37 mph (84.27 km/h) |
| 60 mph (96.56 km/h) | 57.13 mph (91.94 km/h) |
| 65 mph (104.61 km/h) | 61.89 mph (99.6 km/h) |
| 70 mph (112.65 km/h) | 66.65 mph (107.26 km/h) |
| 75 mph (120.7 km/h) | 71.41 mph (114.92 km/h) |
| 80 mph (128.75 km/h) | 76.17 mph (122.58 km/h) |
| 85 mph (136.79 km/h) | 80.93 mph (130.24 km/h) |
| 90 mph (144.84 km/h) | 85.69 mph (137.9 km/h) |
| 95 mph (152.89 km/h) | 90.45 mph (145.56 km/h) |
| 100 mph (160.93 km/h) | 95.21 mph (153.23 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2179 | 2531 | 2726 | 2846 | 2976 | 3069 | 3171 | 3292 | 3458 | 3625 | 3811 | 3959 | 4228 | 4525 | 4756 | 4905 | 4988 | 5294 | 5721 | 6648 |
Better Fuel Economy Factory Ratios Increased Power
