Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 140/80-15 | 145/85-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.82 (605) | 24.7 (627.5) | 0.89 (22.5) 3.7% |
| Width inches (mm) | 5.51 (140) | 5.71 (145) | 0.2 (5) 3.6% |
| Circum. inches (mm) | 74.83 (1900.66) | 77.61 (1971.35) | 2.78 (70.69) 3.7% |
| Sidewall Height inches (mm) | 4.41 (112) | 4.85 (123.25) | 0.44 (11.25) 10% |
| Revolutions per mile (km) | 846.73 (526.13) | 816.37 (507.27) | -30.36 (-18.87) -3.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.74 mph (33.38 km/h) |
| 25 mph (40.23 km/h) | 25.93 mph (41.73 km/h) |
| 30 mph (48.28 km/h) | 31.12 mph (50.08 km/h) |
| 35 mph (56.33 km/h) | 36.3 mph (58.42 km/h) |
| 40 mph (64.37 km/h) | 41.49 mph (66.77 km/h) |
| 45 mph (72.42 km/h) | 46.67 mph (75.11 km/h) |
| 50 mph (80.47 km/h) | 51.86 mph (83.46 km/h) |
| 55 mph (88.51 km/h) | 57.05 mph (91.81 km/h) |
| 60 mph (96.56 km/h) | 62.23 mph (100.15 km/h) |
| 65 mph (104.61 km/h) | 67.42 mph (108.5 km/h) |
| 70 mph (112.65 km/h) | 72.6 mph (116.84 km/h) |
| 75 mph (120.7 km/h) | 77.79 mph (125.19 km/h) |
| 80 mph (128.75 km/h) | 82.98 mph (133.54 km/h) |
| 85 mph (136.79 km/h) | 88.16 mph (141.88 km/h) |
| 90 mph (144.84 km/h) | 93.35 mph (150.23 km/h) |
| 95 mph (152.89 km/h) | 98.53 mph (158.57 km/h) |
| 100 mph (160.93 km/h) | 103.72 mph (166.92 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2077 | 2413 | 2599 | 2714 | 2838 | 2926 | 3023 | 3138 | 3297 | 3457 | 3633 | 3775 | 4031 | 4314 | 4535 | 4677 | 4756 | 5048 | 5455 | 6339 |
Better Fuel Economy Factory Ratios Increased Power
