Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/90-15 | 185/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.57 (624) | 23.56 (598.3) | -1.01 (-25.7) -4.1% |
| Width inches (mm) | 5.31 (135) | 7.28 (185) | 1.97 (50) 37% |
| Circum. inches (mm) | 77.18 (1960.35) | 74 (1879.61) | -3.18 (-80.74) -4.1% |
| Sidewall Height inches (mm) | 4.78 (121.5) | 3.28 (83.25) | -1.51 (-38.25) -31.5% |
| Revolutions per mile (km) | 820.95 (510.11) | 856.21 (532.02) | 35.26 (21.91) 4.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.18 mph (30.86 km/h) |
| 25 mph (40.23 km/h) | 23.97 mph (38.58 km/h) |
| 30 mph (48.28 km/h) | 28.76 mph (46.29 km/h) |
| 35 mph (56.33 km/h) | 33.56 mph (54.01 km/h) |
| 40 mph (64.37 km/h) | 38.35 mph (61.72 km/h) |
| 45 mph (72.42 km/h) | 43.15 mph (69.44 km/h) |
| 50 mph (80.47 km/h) | 47.94 mph (77.15 km/h) |
| 55 mph (88.51 km/h) | 52.73 mph (84.87 km/h) |
| 60 mph (96.56 km/h) | 57.53 mph (92.58 km/h) |
| 65 mph (104.61 km/h) | 62.32 mph (100.3 km/h) |
| 70 mph (112.65 km/h) | 67.12 mph (108.01 km/h) |
| 75 mph (120.7 km/h) | 71.91 mph (115.73 km/h) |
| 80 mph (128.75 km/h) | 76.71 mph (123.45 km/h) |
| 85 mph (136.79 km/h) | 81.5 mph (131.16 km/h) |
| 90 mph (144.84 km/h) | 86.29 mph (138.88 km/h) |
| 95 mph (152.89 km/h) | 91.09 mph (146.59 km/h) |
| 100 mph (160.93 km/h) | 95.88 mph (154.31 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
