Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 240/50-16 | 120/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.45 (646.4) | 23.61 (599.8) | -1.83 (-46.6) -7.2% |
| Width inches (mm) | 9.45 (240) | 4.72 (120) | -4.72 (-120) -50% |
| Circum. inches (mm) | 79.95 (2030.73) | 74.19 (1884.33) | -5.76 (-146.4) -7.2% |
| Sidewall Height inches (mm) | 4.72 (120) | 3.31 (84) | -1.42 (-36) -30% |
| Revolutions per mile (km) | 792.5 (492.43) | 854.07 (530.69) | 61.57 (38.26) 7.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.56 mph (29.87 km/h) |
| 25 mph (40.23 km/h) | 23.2 mph (37.33 km/h) |
| 30 mph (48.28 km/h) | 27.84 mph (44.8 km/h) |
| 35 mph (56.33 km/h) | 32.48 mph (52.27 km/h) |
| 40 mph (64.37 km/h) | 37.12 mph (59.73 km/h) |
| 45 mph (72.42 km/h) | 41.76 mph (67.2 km/h) |
| 50 mph (80.47 km/h) | 46.4 mph (74.67 km/h) |
| 55 mph (88.51 km/h) | 51.03 mph (82.13 km/h) |
| 60 mph (96.56 km/h) | 55.67 mph (89.6 km/h) |
| 65 mph (104.61 km/h) | 60.31 mph (97.07 km/h) |
| 70 mph (112.65 km/h) | 64.95 mph (104.53 km/h) |
| 75 mph (120.7 km/h) | 69.59 mph (112 km/h) |
| 80 mph (128.75 km/h) | 74.23 mph (119.47 km/h) |
| 85 mph (136.79 km/h) | 78.87 mph (126.93 km/h) |
| 90 mph (144.84 km/h) | 83.51 mph (134.4 km/h) |
| 95 mph (152.89 km/h) | 88.15 mph (141.87 km/h) |
| 100 mph (160.93 km/h) | 92.79 mph (149.33 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
