Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 195/40-14 | 185/45-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.14 (511.6) | 20.56 (522.1) | 0.41 (10.5) 2.1% |
| Width inches (mm) | 7.68 (195) | 7.28 (185) | -0.39 (-10) -5.1% |
| Circum. inches (mm) | 63.28 (1607.24) | 64.58 (1640.23) | 1.3 (32.99) 2.1% |
| Sidewall Height inches (mm) | 3.07 (78) | 3.28 (83.25) | 0.21 (5.25) 6.7% |
| Revolutions per mile (km) | 1001.31 (622.18) | 981.17 (609.67) | -20.14 (-12.51) -2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.41 mph (32.85 km/h) |
| 25 mph (40.23 km/h) | 25.51 mph (41.06 km/h) |
| 30 mph (48.28 km/h) | 30.62 mph (49.27 km/h) |
| 35 mph (56.33 km/h) | 35.72 mph (57.48 km/h) |
| 40 mph (64.37 km/h) | 40.82 mph (65.7 km/h) |
| 45 mph (72.42 km/h) | 45.92 mph (73.91 km/h) |
| 50 mph (80.47 km/h) | 51.03 mph (82.12 km/h) |
| 55 mph (88.51 km/h) | 56.13 mph (90.33 km/h) |
| 60 mph (96.56 km/h) | 61.23 mph (98.54 km/h) |
| 65 mph (104.61 km/h) | 66.33 mph (106.75 km/h) |
| 70 mph (112.65 km/h) | 71.44 mph (114.97 km/h) |
| 75 mph (120.7 km/h) | 76.54 mph (123.18 km/h) |
| 80 mph (128.75 km/h) | 81.64 mph (131.39 km/h) |
| 85 mph (136.79 km/h) | 86.74 mph (139.6 km/h) |
| 90 mph (144.84 km/h) | 91.85 mph (147.81 km/h) |
| 95 mph (152.89 km/h) | 96.95 mph (156.03 km/h) |
| 100 mph (160.93 km/h) | 102.05 mph (164.24 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
