Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 120/80-17 | 140/60-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.56 (623.8) | 23.61 (599.8) | -0.94 (-24) -3.8% |
| Width inches (mm) | 4.72 (120) | 5.51 (140) | 0.79 (20) 16.7% |
| Circum. inches (mm) | 77.15 (1959.73) | 74.19 (1884.33) | -2.97 (-75.4) -3.8% |
| Sidewall Height inches (mm) | 3.78 (96) | 3.31 (84) | -0.47 (-12) -12.5% |
| Revolutions per mile (km) | 821.21 (510.27) | 854.07 (530.69) | 32.86 (20.42) 4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.23 mph (30.95 km/h) |
| 25 mph (40.23 km/h) | 24.04 mph (38.69 km/h) |
| 30 mph (48.28 km/h) | 28.85 mph (46.42 km/h) |
| 35 mph (56.33 km/h) | 33.65 mph (54.16 km/h) |
| 40 mph (64.37 km/h) | 38.46 mph (61.9 km/h) |
| 45 mph (72.42 km/h) | 43.27 mph (69.63 km/h) |
| 50 mph (80.47 km/h) | 48.08 mph (77.37 km/h) |
| 55 mph (88.51 km/h) | 52.88 mph (85.11 km/h) |
| 60 mph (96.56 km/h) | 57.69 mph (92.85 km/h) |
| 65 mph (104.61 km/h) | 62.5 mph (100.58 km/h) |
| 70 mph (112.65 km/h) | 67.31 mph (108.32 km/h) |
| 75 mph (120.7 km/h) | 72.11 mph (116.06 km/h) |
| 80 mph (128.75 km/h) | 76.92 mph (123.79 km/h) |
| 85 mph (136.79 km/h) | 81.73 mph (131.53 km/h) |
| 90 mph (144.84 km/h) | 86.54 mph (139.27 km/h) |
| 95 mph (152.89 km/h) | 91.34 mph (147.01 km/h) |
| 100 mph (160.93 km/h) | 96.15 mph (154.74 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
