Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 205/35-18 | 185/35-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.65 (600.7) | 23.1 (586.7) | -0.55 (-14) -2.3% |
| Width inches (mm) | 8.07 (205) | 7.28 (185) | -0.79 (-20) -9.8% |
| Circum. inches (mm) | 74.3 (1887.15) | 72.57 (1843.17) | -1.73 (-43.98) -2.3% |
| Sidewall Height inches (mm) | 2.82 (71.75) | 2.55 (64.75) | -0.28 (-7) -9.8% |
| Revolutions per mile (km) | 852.79 (529.9) | 873.14 (542.54) | 20.35 (12.64) 2.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.53 mph (31.44 km/h) |
| 25 mph (40.23 km/h) | 24.42 mph (39.3 km/h) |
| 30 mph (48.28 km/h) | 29.3 mph (47.16 km/h) |
| 35 mph (56.33 km/h) | 34.18 mph (55.01 km/h) |
| 40 mph (64.37 km/h) | 39.07 mph (62.87 km/h) |
| 45 mph (72.42 km/h) | 43.95 mph (70.73 km/h) |
| 50 mph (80.47 km/h) | 48.83 mph (78.59 km/h) |
| 55 mph (88.51 km/h) | 53.72 mph (86.45 km/h) |
| 60 mph (96.56 km/h) | 58.6 mph (94.31 km/h) |
| 65 mph (104.61 km/h) | 63.49 mph (102.17 km/h) |
| 70 mph (112.65 km/h) | 68.37 mph (110.03 km/h) |
| 75 mph (120.7 km/h) | 73.25 mph (117.89 km/h) |
| 80 mph (128.75 km/h) | 78.14 mph (125.75 km/h) |
| 85 mph (136.79 km/h) | 83.02 mph (133.61 km/h) |
| 90 mph (144.84 km/h) | 87.9 mph (141.47 km/h) |
| 95 mph (152.89 km/h) | 92.79 mph (149.32 km/h) |
| 100 mph (160.93 km/h) | 97.67 mph (157.18 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2222 | 2581 | 2780 | 2903 | 3035 | 3130 | 3234 | 3357 | 3527 | 3697 | 3886 | 4037 | 4312 | 4614 | 4851 | 5002 | 5087 | 5399 | 5834 | 6779 |
Better Fuel Economy Factory Ratios Increased Power
