Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/60-16 | 300/45-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.99 (736.4) | 30.63 (778) | 1.64 (41.6) 5.6% |
| Width inches (mm) | 10.83 (275) | 11.81 (300) | 0.98 (25) 9.1% |
| Circum. inches (mm) | 91.08 (2313.47) | 96.23 (2444.16) | 5.15 (130.69) 5.6% |
| Sidewall Height inches (mm) | 6.5 (165) | 5.31 (135) | -1.18 (-30) -18.2% |
| Revolutions per mile (km) | 695.64 (432.25) | 658.44 (409.14) | -37.2 (-23.11) -5.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.13 mph (34.01 km/h) |
| 25 mph (40.23 km/h) | 26.41 mph (42.51 km/h) |
| 30 mph (48.28 km/h) | 31.69 mph (51.01 km/h) |
| 35 mph (56.33 km/h) | 36.98 mph (59.51 km/h) |
| 40 mph (64.37 km/h) | 42.26 mph (68.01 km/h) |
| 45 mph (72.42 km/h) | 47.54 mph (76.51 km/h) |
| 50 mph (80.47 km/h) | 52.82 mph (85.01 km/h) |
| 55 mph (88.51 km/h) | 58.11 mph (93.51 km/h) |
| 60 mph (96.56 km/h) | 63.39 mph (102.02 km/h) |
| 65 mph (104.61 km/h) | 68.67 mph (110.52 km/h) |
| 70 mph (112.65 km/h) | 73.95 mph (119.02 km/h) |
| 75 mph (120.7 km/h) | 79.24 mph (127.52 km/h) |
| 80 mph (128.75 km/h) | 84.52 mph (136.02 km/h) |
| 85 mph (136.79 km/h) | 89.8 mph (144.52 km/h) |
| 90 mph (144.84 km/h) | 95.08 mph (153.02 km/h) |
| 95 mph (152.89 km/h) | 100.37 mph (161.52 km/h) |
| 100 mph (160.93 km/h) | 105.65 mph (170.03 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1676 | 1947 | 2096 | 2189 | 2289 | 2360 | 2439 | 2531 | 2660 | 2788 | 2931 | 3045 | 3251 | 3480 | 3658 | 3772 | 3836 | 4071 | 4399 | 5112 |
Better Fuel Economy Factory Ratios Increased Power
