Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 140/85-16 | 140/60-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.37 (644.4) | 24.61 (625.2) | -0.76 (-19.2) -3% |
| Width inches (mm) | 5.51 (140) | 5.51 (140) | 0 (0) 0% |
| Circum. inches (mm) | 79.7 (2024.44) | 77.33 (1964.12) | -2.37 (-60.32) -3% |
| Sidewall Height inches (mm) | 4.69 (119) | 3.31 (84) | -1.38 (-35) -29.4% |
| Revolutions per mile (km) | 794.96 (493.96) | 819.37 (509.13) | 24.41 (15.17) 3.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.4 mph (31.23 km/h) |
| 25 mph (40.23 km/h) | 24.26 mph (39.03 km/h) |
| 30 mph (48.28 km/h) | 29.11 mph (46.84 km/h) |
| 35 mph (56.33 km/h) | 33.96 mph (54.65 km/h) |
| 40 mph (64.37 km/h) | 38.81 mph (62.46 km/h) |
| 45 mph (72.42 km/h) | 43.66 mph (70.26 km/h) |
| 50 mph (80.47 km/h) | 48.51 mph (78.07 km/h) |
| 55 mph (88.51 km/h) | 53.36 mph (85.88 km/h) |
| 60 mph (96.56 km/h) | 58.21 mph (93.68 km/h) |
| 65 mph (104.61 km/h) | 63.06 mph (101.49 km/h) |
| 70 mph (112.65 km/h) | 67.91 mph (109.3 km/h) |
| 75 mph (120.7 km/h) | 72.77 mph (117.1 km/h) |
| 80 mph (128.75 km/h) | 77.62 mph (124.91 km/h) |
| 85 mph (136.79 km/h) | 82.47 mph (132.72 km/h) |
| 90 mph (144.84 km/h) | 87.32 mph (140.53 km/h) |
| 95 mph (152.89 km/h) | 92.17 mph (148.33 km/h) |
| 100 mph (160.93 km/h) | 97.02 mph (156.14 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2085 | 2422 | 2609 | 2724 | 2848 | 2937 | 3035 | 3150 | 3310 | 3469 | 3647 | 3789 | 4046 | 4330 | 4552 | 4694 | 4774 | 5066 | 5475 | 6362 |
Better Fuel Economy Factory Ratios Increased Power
