Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 50/80-17 | 120/110-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.15 (511.8) | 27.39 (695.8) | 7.24 (184) 36% |
| Width inches (mm) | 1.97 (50) | 4.72 (120) | 2.76 (70) 140% |
| Circum. inches (mm) | 63.3 (1607.87) | 86.06 (2185.92) | 22.76 (578.05) 36% |
| Sidewall Height inches (mm) | 1.57 (40) | 5.2 (132) | 3.62 (92) 230% |
| Revolutions per mile (km) | 1000.92 (621.94) | 736.23 (457.47) | -264.69 (-164.47) -26.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 27.19 mph (43.76 km/h) |
| 25 mph (40.23 km/h) | 33.99 mph (54.7 km/h) |
| 30 mph (48.28 km/h) | 40.79 mph (65.64 km/h) |
| 35 mph (56.33 km/h) | 47.58 mph (76.58 km/h) |
| 40 mph (64.37 km/h) | 54.38 mph (87.52 km/h) |
| 45 mph (72.42 km/h) | 61.18 mph (98.46 km/h) |
| 50 mph (80.47 km/h) | 67.98 mph (109.4 km/h) |
| 55 mph (88.51 km/h) | 74.77 mph (120.34 km/h) |
| 60 mph (96.56 km/h) | 81.57 mph (131.28 km/h) |
| 65 mph (104.61 km/h) | 88.37 mph (142.22 km/h) |
| 70 mph (112.65 km/h) | 95.17 mph (153.16 km/h) |
| 75 mph (120.7 km/h) | 101.96 mph (164.09 km/h) |
| 80 mph (128.75 km/h) | 108.76 mph (175.03 km/h) |
| 85 mph (136.79 km/h) | 115.56 mph (185.97 km/h) |
| 90 mph (144.84 km/h) | 122.36 mph (196.91 km/h) |
| 95 mph (152.89 km/h) | 129.15 mph (207.85 km/h) |
| 100 mph (160.93 km/h) | 135.95 mph (218.79 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1874 | 2177 | 2344 | 2448 | 2559 | 2639 | 2727 | 2830 | 2974 | 3117 | 3277 | 3404 | 3636 | 3891 | 4090 | 4218 | 4289 | 4552 | 4919 | 5716 |
Better Fuel Economy Factory Ratios Increased Power
