Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 140/85-16 | 150/90-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.37 (644.4) | 28.63 (727.2) | 3.26 (82.8) 12.8% |
| Width inches (mm) | 5.51 (140) | 5.91 (150) | 0.39 (10) 7.1% |
| Circum. inches (mm) | 79.7 (2024.44) | 89.94 (2284.57) | 10.24 (260.12) 12.8% |
| Sidewall Height inches (mm) | 4.69 (119) | 5.31 (135) | 0.63 (16) 13.4% |
| Revolutions per mile (km) | 794.96 (493.96) | 704.44 (437.72) | -90.51 (-56.24) -11.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.57 mph (36.32 km/h) |
| 25 mph (40.23 km/h) | 28.21 mph (45.4 km/h) |
| 30 mph (48.28 km/h) | 33.85 mph (54.48 km/h) |
| 35 mph (56.33 km/h) | 39.5 mph (63.56 km/h) |
| 40 mph (64.37 km/h) | 45.14 mph (72.65 km/h) |
| 45 mph (72.42 km/h) | 50.78 mph (81.73 km/h) |
| 50 mph (80.47 km/h) | 56.42 mph (90.81 km/h) |
| 55 mph (88.51 km/h) | 62.07 mph (99.89 km/h) |
| 60 mph (96.56 km/h) | 67.71 mph (108.97 km/h) |
| 65 mph (104.61 km/h) | 73.35 mph (118.05 km/h) |
| 70 mph (112.65 km/h) | 78.99 mph (127.13 km/h) |
| 75 mph (120.7 km/h) | 84.64 mph (136.21 km/h) |
| 80 mph (128.75 km/h) | 90.28 mph (145.29 km/h) |
| 85 mph (136.79 km/h) | 95.92 mph (154.37 km/h) |
| 90 mph (144.84 km/h) | 101.56 mph (163.45 km/h) |
| 95 mph (152.89 km/h) | 107.21 mph (172.53 km/h) |
| 100 mph (160.93 km/h) | 112.85 mph (181.61 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1793 | 2083 | 2243 | 2342 | 2449 | 2525 | 2609 | 2708 | 2845 | 2983 | 3135 | 3257 | 3479 | 3723 | 3913 | 4035 | 4104 | 4356 | 4707 | 5470 |
Better Fuel Economy Factory Ratios Increased Power
