Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/50-20 | 275/60-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.04 (763) | 32.99 (838) | 2.95 (75) 9.8% |
| Width inches (mm) | 10.04 (255) | 10.83 (275) | 0.79 (20) 7.8% |
| Circum. inches (mm) | 94.37 (2397.04) | 103.65 (2632.65) | 9.28 (235.62) 9.8% |
| Sidewall Height inches (mm) | 5.02 (127.5) | 6.5 (165) | 1.48 (37.5) 29.4% |
| Revolutions per mile (km) | 671.39 (417.18) | 611.3 (379.84) | -60.09 (-37.34) -8.9% |
275/60-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.97 mph (35.35 km/h) |
| 25 mph (40.23 km/h) | 27.46 mph (44.19 km/h) |
| 30 mph (48.28 km/h) | 32.95 mph (53.03 km/h) |
| 35 mph (56.33 km/h) | 38.44 mph (61.86 km/h) |
| 40 mph (64.37 km/h) | 43.93 mph (70.7 km/h) |
| 45 mph (72.42 km/h) | 49.42 mph (79.54 km/h) |
| 50 mph (80.47 km/h) | 54.91 mph (88.38 km/h) |
| 55 mph (88.51 km/h) | 60.41 mph (97.21 km/h) |
| 60 mph (96.56 km/h) | 65.9 mph (106.05 km/h) |
| 65 mph (104.61 km/h) | 71.39 mph (114.89 km/h) |
| 70 mph (112.65 km/h) | 76.88 mph (123.73 km/h) |
| 75 mph (120.7 km/h) | 82.37 mph (132.57 km/h) |
| 80 mph (128.75 km/h) | 87.86 mph (141.4 km/h) |
| 85 mph (136.79 km/h) | 93.36 mph (150.24 km/h) |
| 90 mph (144.84 km/h) | 98.85 mph (159.08 km/h) |
| 95 mph (152.89 km/h) | 104.34 mph (167.92 km/h) |
| 100 mph (160.93 km/h) | 109.83 mph (176.75 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1556 | 1807 | 1946 | 2032 | 2125 | 2191 | 2264 | 2350 | 2469 | 2588 | 2721 | 2827 | 3019 | 3230 | 3396 | 3502 | 3561 | 3780 | 4084 | 4746 |
Better Fuel Economy Factory Ratios Increased Power
