Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 50/80-17 | 50/90-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.15 (511.8) | 20.54 (521.8) | 0.39 (10) 2% |
| Width inches (mm) | 1.97 (50) | 1.97 (50) | 0 (0) 0% |
| Circum. inches (mm) | 63.3 (1607.87) | 64.54 (1639.28) | 1.24 (31.42) 2% |
| Sidewall Height inches (mm) | 1.57 (40) | 1.77 (45) | 0.2 (5) 12.5% |
| Revolutions per mile (km) | 1000.92 (621.94) | 981.74 (610.02) | -19.18 (-11.92) -1.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.39 mph (32.82 km/h) |
| 25 mph (40.23 km/h) | 25.49 mph (41.02 km/h) |
| 30 mph (48.28 km/h) | 30.59 mph (49.22 km/h) |
| 35 mph (56.33 km/h) | 35.68 mph (57.43 km/h) |
| 40 mph (64.37 km/h) | 40.78 mph (65.63 km/h) |
| 45 mph (72.42 km/h) | 45.88 mph (73.84 km/h) |
| 50 mph (80.47 km/h) | 50.98 mph (82.04 km/h) |
| 55 mph (88.51 km/h) | 56.07 mph (90.24 km/h) |
| 60 mph (96.56 km/h) | 61.17 mph (98.45 km/h) |
| 65 mph (104.61 km/h) | 66.27 mph (106.65 km/h) |
| 70 mph (112.65 km/h) | 71.37 mph (114.86 km/h) |
| 75 mph (120.7 km/h) | 76.47 mph (123.06 km/h) |
| 80 mph (128.75 km/h) | 81.56 mph (131.26 km/h) |
| 85 mph (136.79 km/h) | 86.66 mph (139.47 km/h) |
| 90 mph (144.84 km/h) | 91.76 mph (147.67 km/h) |
| 95 mph (152.89 km/h) | 96.86 mph (155.88 km/h) |
| 100 mph (160.93 km/h) | 101.95 mph (164.08 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
