Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 170/60-16 | 140/90-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.03 (610.4) | 25.92 (658.4) | 1.89 (48) 7.9% |
| Width inches (mm) | 6.69 (170) | 5.51 (140) | -1.18 (-30) -17.6% |
| Circum. inches (mm) | 75.5 (1917.63) | 81.43 (2068.42) | 5.94 (150.8) 7.9% |
| Sidewall Height inches (mm) | 4.02 (102) | 4.96 (126) | 0.94 (24) 23.5% |
| Revolutions per mile (km) | 839.24 (521.48) | 778.05 (483.46) | -61.18 (-38.02) -7.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.57 mph (34.72 km/h) |
| 25 mph (40.23 km/h) | 26.97 mph (43.4 km/h) |
| 30 mph (48.28 km/h) | 32.36 mph (52.08 km/h) |
| 35 mph (56.33 km/h) | 37.75 mph (60.76 km/h) |
| 40 mph (64.37 km/h) | 43.15 mph (69.44 km/h) |
| 45 mph (72.42 km/h) | 48.54 mph (78.12 km/h) |
| 50 mph (80.47 km/h) | 53.93 mph (86.8 km/h) |
| 55 mph (88.51 km/h) | 59.33 mph (95.47 km/h) |
| 60 mph (96.56 km/h) | 64.72 mph (104.15 km/h) |
| 65 mph (104.61 km/h) | 70.11 mph (112.83 km/h) |
| 70 mph (112.65 km/h) | 75.5 mph (121.51 km/h) |
| 75 mph (120.7 km/h) | 80.9 mph (130.19 km/h) |
| 80 mph (128.75 km/h) | 86.29 mph (138.87 km/h) |
| 85 mph (136.79 km/h) | 91.68 mph (147.55 km/h) |
| 90 mph (144.84 km/h) | 97.08 mph (156.23 km/h) |
| 95 mph (152.89 km/h) | 102.47 mph (164.91 km/h) |
| 100 mph (160.93 km/h) | 107.86 mph (173.59 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1980 | 2300 | 2477 | 2587 | 2705 | 2789 | 2882 | 2991 | 3143 | 3294 | 3463 | 3598 | 3842 | 4112 | 4322 | 4457 | 4533 | 4811 | 5199 | 6041 |
Better Fuel Economy Factory Ratios Increased Power
