Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 120/50-17 | 70/50-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.72 (551.8) | 19.76 (501.8) | -1.97 (-50) -9.1% |
| Width inches (mm) | 4.72 (120) | 2.76 (70) | -1.97 (-50) -41.7% |
| Circum. inches (mm) | 68.25 (1733.53) | 62.07 (1576.45) | -6.18 (-157.08) -9.1% |
| Sidewall Height inches (mm) | 2.36 (60) | 1.38 (35) | -0.98 (-25) -41.7% |
| Revolutions per mile (km) | 928.36 (576.86) | 1020.87 (634.33) | 92.5 (57.48) 10% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.19 mph (29.27 km/h) |
| 25 mph (40.23 km/h) | 22.73 mph (36.59 km/h) |
| 30 mph (48.28 km/h) | 27.28 mph (43.91 km/h) |
| 35 mph (56.33 km/h) | 31.83 mph (51.22 km/h) |
| 40 mph (64.37 km/h) | 36.38 mph (58.54 km/h) |
| 45 mph (72.42 km/h) | 40.92 mph (65.86 km/h) |
| 50 mph (80.47 km/h) | 45.47 mph (73.18 km/h) |
| 55 mph (88.51 km/h) | 50.02 mph (80.49 km/h) |
| 60 mph (96.56 km/h) | 54.56 mph (87.81 km/h) |
| 65 mph (104.61 km/h) | 59.11 mph (95.13 km/h) |
| 70 mph (112.65 km/h) | 63.66 mph (102.45 km/h) |
| 75 mph (120.7 km/h) | 68.2 mph (109.76 km/h) |
| 80 mph (128.75 km/h) | 72.75 mph (117.08 km/h) |
| 85 mph (136.79 km/h) | 77.3 mph (124.4 km/h) |
| 90 mph (144.84 km/h) | 81.84 mph (131.72 km/h) |
| 95 mph (152.89 km/h) | 86.39 mph (139.03 km/h) |
| 100 mph (160.93 km/h) | 90.94 mph (146.35 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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
