Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/60-17 | 305/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.99 (761.8) | 27.81 (706.3) | -2.19 (-55.5) -7.3% |
| Width inches (mm) | 10.83 (275) | 12.01 (305) | 1.18 (30) 10.9% |
| Circum. inches (mm) | 94.22 (2393.27) | 87.36 (2218.91) | -6.86 (-174.36) -7.3% |
| Sidewall Height inches (mm) | 6.5 (165) | 5.4 (137.25) | -1.09 (-27.75) -16.8% |
| Revolutions per mile (km) | 672.45 (417.84) | 725.29 (450.67) | 52.84 (32.83) 7.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.54 mph (29.84 km/h) |
| 25 mph (40.23 km/h) | 23.18 mph (37.3 km/h) |
| 30 mph (48.28 km/h) | 27.81 mph (44.76 km/h) |
| 35 mph (56.33 km/h) | 32.45 mph (52.22 km/h) |
| 40 mph (64.37 km/h) | 37.09 mph (59.68 km/h) |
| 45 mph (72.42 km/h) | 41.72 mph (67.14 km/h) |
| 50 mph (80.47 km/h) | 46.36 mph (74.61 km/h) |
| 55 mph (88.51 km/h) | 50.99 mph (82.07 km/h) |
| 60 mph (96.56 km/h) | 55.63 mph (89.53 km/h) |
| 65 mph (104.61 km/h) | 60.26 mph (96.99 km/h) |
| 70 mph (112.65 km/h) | 64.9 mph (104.45 km/h) |
| 75 mph (120.7 km/h) | 69.54 mph (111.91 km/h) |
| 80 mph (128.75 km/h) | 74.17 mph (119.37 km/h) |
| 85 mph (136.79 km/h) | 78.81 mph (126.83 km/h) |
| 90 mph (144.84 km/h) | 83.44 mph (134.29 km/h) |
| 95 mph (152.89 km/h) | 88.08 mph (141.75 km/h) |
| 100 mph (160.93 km/h) | 92.71 mph (149.21 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1846 | 2144 | 2309 | 2411 | 2521 | 2600 | 2686 | 2788 | 2930 | 3071 | 3228 | 3354 | 3581 | 3833 | 4029 | 4155 | 4226 | 4485 | 4846 | 5631 |
Better Fuel Economy Factory Ratios Increased Power
