Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 260/55-18 | 300/100-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.26 (743.2) | 38.62 (981) | 9.36 (237.8) 32% |
| Width inches (mm) | 10.24 (260) | 11.81 (300) | 1.57 (40) 15.4% |
| Circum. inches (mm) | 91.92 (2334.83) | 121.33 (3081.9) | 29.41 (747.07) 32% |
| Sidewall Height inches (mm) | 5.63 (143) | 11.81 (300) | 6.18 (157) 109.8% |
| Revolutions per mile (km) | 689.28 (428.3) | 522.19 (324.47) | -167.08 (-103.82) -24.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 26.4 mph (42.49 km/h) |
| 25 mph (40.23 km/h) | 33 mph (53.11 km/h) |
| 30 mph (48.28 km/h) | 39.6 mph (63.73 km/h) |
| 35 mph (56.33 km/h) | 46.2 mph (74.35 km/h) |
| 40 mph (64.37 km/h) | 52.8 mph (84.97 km/h) |
| 45 mph (72.42 km/h) | 59.4 mph (95.59 km/h) |
| 50 mph (80.47 km/h) | 66 mph (106.21 km/h) |
| 55 mph (88.51 km/h) | 72.6 mph (116.84 km/h) |
| 60 mph (96.56 km/h) | 79.2 mph (127.46 km/h) |
| 65 mph (104.61 km/h) | 85.8 mph (138.08 km/h) |
| 70 mph (112.65 km/h) | 92.4 mph (148.7 km/h) |
| 75 mph (120.7 km/h) | 99 mph (159.32 km/h) |
| 80 mph (128.75 km/h) | 105.6 mph (169.94 km/h) |
| 85 mph (136.79 km/h) | 112.2 mph (180.56 km/h) |
| 90 mph (144.84 km/h) | 118.8 mph (191.19 km/h) |
| 95 mph (152.89 km/h) | 125.4 mph (201.81 km/h) |
| 100 mph (160.93 km/h) | 132 mph (212.43 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1329 | 1544 | 1663 | 1736 | 1815 | 1872 | 1934 | 2007 | 2109 | 2211 | 2324 | 2415 | 2579 | 2760 | 2901 | 2991 | 3042 | 3229 | 3489 | 4054 |
Better Fuel Economy Factory Ratios Increased Power
