Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 80/70-17 | 120/80-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.41 (543.8) | 23.56 (598.4) | 2.15 (54.6) 10% |
| Width inches (mm) | 3.15 (80) | 4.72 (120) | 1.57 (40) 50% |
| Circum. inches (mm) | 67.26 (1708.4) | 74.01 (1879.93) | 6.75 (171.53) 10% |
| Sidewall Height inches (mm) | 2.2 (56) | 3.78 (96) | 1.57 (40) 71.4% |
| Revolutions per mile (km) | 942.02 (585.34) | 856.07 (531.93) | -85.95 (-53.41) -9.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.01 mph (35.42 km/h) |
| 25 mph (40.23 km/h) | 27.51 mph (44.27 km/h) |
| 30 mph (48.28 km/h) | 33.01 mph (53.13 km/h) |
| 35 mph (56.33 km/h) | 38.51 mph (61.98 km/h) |
| 40 mph (64.37 km/h) | 44.02 mph (70.84 km/h) |
| 45 mph (72.42 km/h) | 49.52 mph (79.69 km/h) |
| 50 mph (80.47 km/h) | 55.02 mph (88.55 km/h) |
| 55 mph (88.51 km/h) | 60.52 mph (97.4 km/h) |
| 60 mph (96.56 km/h) | 66.02 mph (106.26 km/h) |
| 65 mph (104.61 km/h) | 71.53 mph (115.11 km/h) |
| 70 mph (112.65 km/h) | 77.03 mph (123.97 km/h) |
| 75 mph (120.7 km/h) | 82.53 mph (132.82 km/h) |
| 80 mph (128.75 km/h) | 88.03 mph (141.67 km/h) |
| 85 mph (136.79 km/h) | 93.53 mph (150.53 km/h) |
| 90 mph (144.84 km/h) | 99.04 mph (159.38 km/h) |
| 95 mph (152.89 km/h) | 104.54 mph (168.24 km/h) |
| 100 mph (160.93 km/h) | 110.04 mph (177.09 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2179 | 2531 | 2725 | 2846 | 2976 | 3068 | 3170 | 3291 | 3458 | 3625 | 3810 | 3958 | 4227 | 4524 | 4756 | 4904 | 4987 | 5293 | 5720 | 6647 |
Better Fuel Economy Factory Ratios Increased Power
