Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/50-20 | 195/50-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.22 (793) | 22.68 (576) | -8.54 (-217) -27.4% |
| Width inches (mm) | 11.22 (285) | 7.68 (195) | -3.54 (-90) -31.6% |
| Circum. inches (mm) | 98.08 (2491.28) | 71.24 (1809.56) | -26.84 (-681.73) -27.4% |
| Sidewall Height inches (mm) | 5.61 (142.5) | 3.84 (97.5) | -1.77 (-45) -31.6% |
| Revolutions per mile (km) | 645.99 (401.4) | 889.36 (552.62) | 243.37 (151.22) 37.7% |
195/50-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 14.53 mph (23.38 km/h) |
| 25 mph (40.23 km/h) | 18.16 mph (29.22 km/h) |
| 30 mph (48.28 km/h) | 21.79 mph (35.07 km/h) |
| 35 mph (56.33 km/h) | 25.42 mph (40.91 km/h) |
| 40 mph (64.37 km/h) | 29.05 mph (46.76 km/h) |
| 45 mph (72.42 km/h) | 32.69 mph (52.6 km/h) |
| 50 mph (80.47 km/h) | 36.32 mph (58.45 km/h) |
| 55 mph (88.51 km/h) | 39.95 mph (64.29 km/h) |
| 60 mph (96.56 km/h) | 43.58 mph (70.14 km/h) |
| 65 mph (104.61 km/h) | 47.21 mph (75.98 km/h) |
| 70 mph (112.65 km/h) | 50.84 mph (81.83 km/h) |
| 75 mph (120.7 km/h) | 54.48 mph (87.67 km/h) |
| 80 mph (128.75 km/h) | 58.11 mph (93.52 km/h) |
| 85 mph (136.79 km/h) | 61.74 mph (99.36 km/h) |
| 90 mph (144.84 km/h) | 65.37 mph (105.21 km/h) |
| 95 mph (152.89 km/h) | 69 mph (111.05 km/h) |
| 100 mph (160.93 km/h) | 72.64 mph (116.9 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2263 | 2629 | 2831 | 2957 | 3091 | 3188 | 3294 | 3419 | 3592 | 3766 | 3958 | 4112 | 4392 | 4700 | 4941 | 5095 | 5181 | 5499 | 5942 | 6905 |
Better Fuel Economy Factory Ratios Increased Power
