Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 140/85-16 | 160/85-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.37 (644.4) | 28.71 (729.2) | 3.34 (84.8) 13.2% |
| Width inches (mm) | 5.51 (140) | 6.3 (160) | 0.79 (20) 14.3% |
| Circum. inches (mm) | 79.7 (2024.44) | 90.19 (2290.85) | 10.49 (266.41) 13.2% |
| Sidewall Height inches (mm) | 4.69 (119) | 5.35 (136) | 0.67 (17) 14.3% |
| Revolutions per mile (km) | 794.96 (493.96) | 702.51 (436.52) | -92.45 (-57.44) -11.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.63 mph (36.42 km/h) |
| 25 mph (40.23 km/h) | 28.29 mph (45.53 km/h) |
| 30 mph (48.28 km/h) | 33.95 mph (54.63 km/h) |
| 35 mph (56.33 km/h) | 39.61 mph (63.74 km/h) |
| 40 mph (64.37 km/h) | 45.26 mph (72.85 km/h) |
| 45 mph (72.42 km/h) | 50.92 mph (81.95 km/h) |
| 50 mph (80.47 km/h) | 56.58 mph (91.06 km/h) |
| 55 mph (88.51 km/h) | 62.24 mph (100.16 km/h) |
| 60 mph (96.56 km/h) | 67.9 mph (109.27 km/h) |
| 65 mph (104.61 km/h) | 73.55 mph (118.37 km/h) |
| 70 mph (112.65 km/h) | 79.21 mph (127.48 km/h) |
| 75 mph (120.7 km/h) | 84.87 mph (136.58 km/h) |
| 80 mph (128.75 km/h) | 90.53 mph (145.69 km/h) |
| 85 mph (136.79 km/h) | 96.19 mph (154.8 km/h) |
| 90 mph (144.84 km/h) | 101.84 mph (163.9 km/h) |
| 95 mph (152.89 km/h) | 107.5 mph (173.01 km/h) |
| 100 mph (160.93 km/h) | 113.16 mph (182.11 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1788 | 2077 | 2237 | 2335 | 2442 | 2518 | 2602 | 2701 | 2838 | 2975 | 3127 | 3248 | 3469 | 3712 | 3903 | 4024 | 4093 | 4344 | 4694 | 5455 |
Better Fuel Economy Factory Ratios Increased Power
