Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/80-20 | 275/60-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 37.32 (948) | 32.99 (838) | -4.33 (-110) -11.6% |
| Width inches (mm) | 10.83 (275) | 10.83 (275) | 0 (0) 0% |
| Circum. inches (mm) | 117.25 (2978.23) | 103.65 (2632.65) | -13.61 (-345.58) -11.6% |
| Sidewall Height inches (mm) | 8.66 (220) | 6.5 (165) | -2.17 (-55) -25% |
| Revolutions per mile (km) | 540.37 (335.77) | 611.3 (379.84) | 70.93 (44.07) 13.1% |
275/60-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.68 mph (28.45 km/h) |
| 25 mph (40.23 km/h) | 22.1 mph (35.57 km/h) |
| 30 mph (48.28 km/h) | 26.52 mph (42.68 km/h) |
| 35 mph (56.33 km/h) | 30.94 mph (49.79 km/h) |
| 40 mph (64.37 km/h) | 35.36 mph (56.9 km/h) |
| 45 mph (72.42 km/h) | 39.78 mph (64.02 km/h) |
| 50 mph (80.47 km/h) | 44.2 mph (71.13 km/h) |
| 55 mph (88.51 km/h) | 48.62 mph (78.24 km/h) |
| 60 mph (96.56 km/h) | 53.04 mph (85.36 km/h) |
| 65 mph (104.61 km/h) | 57.46 mph (92.47 km/h) |
| 70 mph (112.65 km/h) | 61.88 mph (99.58 km/h) |
| 75 mph (120.7 km/h) | 66.3 mph (106.7 km/h) |
| 80 mph (128.75 km/h) | 70.72 mph (113.81 km/h) |
| 85 mph (136.79 km/h) | 75.14 mph (120.92 km/h) |
| 90 mph (144.84 km/h) | 79.56 mph (128.03 km/h) |
| 95 mph (152.89 km/h) | 83.98 mph (135.15 km/h) |
| 100 mph (160.93 km/h) | 88.4 mph (142.26 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
