Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 120/70-19 | 120/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.61 (650.6) | 23.61 (599.8) | -2 (-50.8) -7.8% |
| Width inches (mm) | 4.72 (120) | 4.72 (120) | 0 (0) 0% |
| Circum. inches (mm) | 80.47 (2043.92) | 74.19 (1884.33) | -6.28 (-159.59) -7.8% |
| Sidewall Height inches (mm) | 3.31 (84) | 3.31 (84) | 0 (0) 0% |
| Revolutions per mile (km) | 787.38 (489.25) | 854.07 (530.69) | 66.69 (41.44) 8.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.44 mph (29.67 km/h) |
| 25 mph (40.23 km/h) | 23.05 mph (37.09 km/h) |
| 30 mph (48.28 km/h) | 27.66 mph (44.51 km/h) |
| 35 mph (56.33 km/h) | 32.27 mph (51.93 km/h) |
| 40 mph (64.37 km/h) | 36.88 mph (59.35 km/h) |
| 45 mph (72.42 km/h) | 41.49 mph (66.77 km/h) |
| 50 mph (80.47 km/h) | 46.1 mph (74.18 km/h) |
| 55 mph (88.51 km/h) | 50.71 mph (81.6 km/h) |
| 60 mph (96.56 km/h) | 55.32 mph (89.02 km/h) |
| 65 mph (104.61 km/h) | 59.92 mph (96.44 km/h) |
| 70 mph (112.65 km/h) | 64.53 mph (103.86 km/h) |
| 75 mph (120.7 km/h) | 69.14 mph (111.28 km/h) |
| 80 mph (128.75 km/h) | 73.75 mph (118.69 km/h) |
| 85 mph (136.79 km/h) | 78.36 mph (126.11 km/h) |
| 90 mph (144.84 km/h) | 82.97 mph (133.53 km/h) |
| 95 mph (152.89 km/h) | 87.58 mph (140.95 km/h) |
| 100 mph (160.93 km/h) | 92.19 mph (148.37 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2173 | 2525 | 2719 | 2839 | 2969 | 3061 | 3163 | 3283 | 3450 | 3616 | 3801 | 3949 | 4217 | 4513 | 4745 | 4893 | 4976 | 5281 | 5706 | 6631 |
Better Fuel Economy Factory Ratios Increased Power
