Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 195/40-18 | 195/50-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.14 (613.2) | 24.68 (626.8) | 0.54 (13.6) 2.2% |
| Width inches (mm) | 7.68 (195) | 7.68 (195) | 0 (0) 0% |
| Circum. inches (mm) | 75.84 (1926.42) | 77.53 (1969.15) | 1.68 (42.73) 2.2% |
| Sidewall Height inches (mm) | 3.07 (78) | 3.84 (97.5) | 0.77 (19.5) 25% |
| Revolutions per mile (km) | 835.4 (519.1) | 817.28 (507.83) | -18.13 (-11.26) -2.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.44 mph (32.9 km/h) |
| 25 mph (40.23 km/h) | 25.55 mph (41.13 km/h) |
| 30 mph (48.28 km/h) | 30.67 mph (49.35 km/h) |
| 35 mph (56.33 km/h) | 35.78 mph (57.58 km/h) |
| 40 mph (64.37 km/h) | 40.89 mph (65.8 km/h) |
| 45 mph (72.42 km/h) | 46 mph (74.03 km/h) |
| 50 mph (80.47 km/h) | 51.11 mph (82.25 km/h) |
| 55 mph (88.51 km/h) | 56.22 mph (90.48 km/h) |
| 60 mph (96.56 km/h) | 61.33 mph (98.7 km/h) |
| 65 mph (104.61 km/h) | 66.44 mph (106.93 km/h) |
| 70 mph (112.65 km/h) | 71.55 mph (115.15 km/h) |
| 75 mph (120.7 km/h) | 76.66 mph (123.38 km/h) |
| 80 mph (128.75 km/h) | 81.77 mph (131.6 km/h) |
| 85 mph (136.79 km/h) | 86.89 mph (139.83 km/h) |
| 90 mph (144.84 km/h) | 92 mph (148.05 km/h) |
| 95 mph (152.89 km/h) | 97.11 mph (156.28 km/h) |
| 100 mph (160.93 km/h) | 102.22 mph (164.5 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2080 | 2416 | 2602 | 2717 | 2841 | 2929 | 3027 | 3142 | 3301 | 3460 | 3637 | 3779 | 4036 | 4319 | 4540 | 4682 | 4761 | 5054 | 5461 | 6346 |
Better Fuel Economy Factory Ratios Increased Power
