Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 195/45-17 | 205/40-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.91 (607.3) | 26.46 (672) | 2.55 (64.7) 10.7% |
| Width inches (mm) | 7.68 (195) | 8.07 (205) | 0.39 (10) 5.1% |
| Circum. inches (mm) | 75.11 (1907.89) | 83.12 (2111.15) | 8 (203.26) 10.7% |
| Sidewall Height inches (mm) | 3.45 (87.75) | 3.23 (82) | -0.23 (-5.75) -6.6% |
| Revolutions per mile (km) | 843.52 (524.14) | 762.31 (473.67) | -81.21 (-50.46) -9.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.13 mph (35.62 km/h) |
| 25 mph (40.23 km/h) | 27.66 mph (44.52 km/h) |
| 30 mph (48.28 km/h) | 33.2 mph (53.42 km/h) |
| 35 mph (56.33 km/h) | 38.73 mph (62.33 km/h) |
| 40 mph (64.37 km/h) | 44.26 mph (71.23 km/h) |
| 45 mph (72.42 km/h) | 49.79 mph (80.14 km/h) |
| 50 mph (80.47 km/h) | 55.33 mph (89.04 km/h) |
| 55 mph (88.51 km/h) | 60.86 mph (97.94 km/h) |
| 60 mph (96.56 km/h) | 66.39 mph (106.85 km/h) |
| 65 mph (104.61 km/h) | 71.92 mph (115.75 km/h) |
| 70 mph (112.65 km/h) | 77.46 mph (124.66 km/h) |
| 75 mph (120.7 km/h) | 82.99 mph (133.56 km/h) |
| 80 mph (128.75 km/h) | 88.52 mph (142.46 km/h) |
| 85 mph (136.79 km/h) | 94.06 mph (151.37 km/h) |
| 90 mph (144.84 km/h) | 99.59 mph (160.27 km/h) |
| 95 mph (152.89 km/h) | 105.12 mph (169.18 km/h) |
| 100 mph (160.93 km/h) | 110.65 mph (178.08 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1940 | 2254 | 2427 | 2534 | 2650 | 2732 | 2823 | 2931 | 3079 | 3228 | 3393 | 3525 | 3764 | 4028 | 4235 | 4367 | 4441 | 4714 | 5093 | 5919 |
Better Fuel Economy Factory Ratios Increased Power
