Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 220/60-16 | 340/80-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.39 (670.4) | 39.42 (1001.2) | 13.02 (330.8) 49.3% |
| Width inches (mm) | 8.66 (220) | 13.39 (340) | 4.72 (120) 54.5% |
| Circum. inches (mm) | 82.92 (2106.12) | 123.83 (3145.36) | 40.91 (1039.24) 49.3% |
| Sidewall Height inches (mm) | 5.2 (132) | 10.71 (272) | 5.51 (140) 106.1% |
| Revolutions per mile (km) | 764.13 (474.81) | 511.66 (317.93) | -252.47 (-156.88) -33% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 29.87 mph (48.07 km/h) |
| 25 mph (40.23 km/h) | 37.34 mph (60.09 km/h) |
| 30 mph (48.28 km/h) | 44.8 mph (72.1 km/h) |
| 35 mph (56.33 km/h) | 52.27 mph (84.12 km/h) |
| 40 mph (64.37 km/h) | 59.74 mph (96.14 km/h) |
| 45 mph (72.42 km/h) | 67.2 mph (108.16 km/h) |
| 50 mph (80.47 km/h) | 74.67 mph (120.17 km/h) |
| 55 mph (88.51 km/h) | 82.14 mph (132.19 km/h) |
| 60 mph (96.56 km/h) | 89.61 mph (144.21 km/h) |
| 65 mph (104.61 km/h) | 97.07 mph (156.22 km/h) |
| 70 mph (112.65 km/h) | 104.54 mph (168.24 km/h) |
| 75 mph (120.7 km/h) | 112.01 mph (180.26 km/h) |
| 80 mph (128.75 km/h) | 119.47 mph (192.28 km/h) |
| 85 mph (136.79 km/h) | 126.94 mph (204.29 km/h) |
| 90 mph (144.84 km/h) | 134.41 mph (216.31 km/h) |
| 95 mph (152.89 km/h) | 141.88 mph (228.33 km/h) |
| 100 mph (160.93 km/h) | 149.34 mph (240.35 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1302 | 1513 | 1629 | 1701 | 1779 | 1834 | 1895 | 1967 | 2067 | 2166 | 2277 | 2366 | 2527 | 2704 | 2842 | 2931 | 2981 | 3164 | 3419 | 3973 |
Better Fuel Economy Factory Ratios Increased Power
