Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 80/70-17 | 50/85-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.41 (543.8) | 20.35 (516.8) | -1.06 (-27) -5% |
| Width inches (mm) | 3.15 (80) | 1.97 (50) | -1.18 (-30) -37.5% |
| Circum. inches (mm) | 67.26 (1708.4) | 63.92 (1623.58) | -3.34 (-84.82) -5% |
| Sidewall Height inches (mm) | 2.2 (56) | 1.67 (42.5) | -0.53 (-13.5) -24.1% |
| Revolutions per mile (km) | 942.02 (585.34) | 991.23 (615.92) | 49.22 (30.58) 5.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.01 mph (30.59 km/h) |
| 25 mph (40.23 km/h) | 23.76 mph (38.24 km/h) |
| 30 mph (48.28 km/h) | 28.51 mph (45.88 km/h) |
| 35 mph (56.33 km/h) | 33.26 mph (53.53 km/h) |
| 40 mph (64.37 km/h) | 38.01 mph (61.18 km/h) |
| 45 mph (72.42 km/h) | 42.77 mph (68.82 km/h) |
| 50 mph (80.47 km/h) | 47.52 mph (76.47 km/h) |
| 55 mph (88.51 km/h) | 52.27 mph (84.12 km/h) |
| 60 mph (96.56 km/h) | 57.02 mph (91.77 km/h) |
| 65 mph (104.61 km/h) | 61.77 mph (99.41 km/h) |
| 70 mph (112.65 km/h) | 66.52 mph (107.06 km/h) |
| 75 mph (120.7 km/h) | 71.28 mph (114.71 km/h) |
| 80 mph (128.75 km/h) | 76.03 mph (122.36 km/h) |
| 85 mph (136.79 km/h) | 80.78 mph (130 km/h) |
| 90 mph (144.84 km/h) | 85.53 mph (137.65 km/h) |
| 95 mph (152.89 km/h) | 90.28 mph (145.3 km/h) |
| 100 mph (160.93 km/h) | 95.03 mph (152.94 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
