Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 140/90-15 | 145/85-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.92 (633) | 24.7 (627.5) | -0.22 (-5.5) -0.9% |
| Width inches (mm) | 5.51 (140) | 5.71 (145) | 0.2 (5) 3.6% |
| Circum. inches (mm) | 78.29 (1988.63) | 77.61 (1971.35) | -0.68 (-17.28) -0.9% |
| Sidewall Height inches (mm) | 4.96 (126) | 4.85 (123.25) | -0.11 (-2.75) -2.2% |
| Revolutions per mile (km) | 809.27 (502.86) | 816.37 (507.27) | 7.09 (4.41) 0.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.83 mph (31.91 km/h) |
| 25 mph (40.23 km/h) | 24.78 mph (39.88 km/h) |
| 30 mph (48.28 km/h) | 29.74 mph (47.86 km/h) |
| 35 mph (56.33 km/h) | 34.7 mph (55.84 km/h) |
| 40 mph (64.37 km/h) | 39.65 mph (63.81 km/h) |
| 45 mph (72.42 km/h) | 44.61 mph (71.79 km/h) |
| 50 mph (80.47 km/h) | 49.57 mph (79.77 km/h) |
| 55 mph (88.51 km/h) | 54.52 mph (87.75 km/h) |
| 60 mph (96.56 km/h) | 59.48 mph (95.72 km/h) |
| 65 mph (104.61 km/h) | 64.44 mph (103.7 km/h) |
| 70 mph (112.65 km/h) | 69.39 mph (111.68 km/h) |
| 75 mph (120.7 km/h) | 74.35 mph (119.65 km/h) |
| 80 mph (128.75 km/h) | 79.3 mph (127.63 km/h) |
| 85 mph (136.79 km/h) | 84.26 mph (135.61 km/h) |
| 90 mph (144.84 km/h) | 89.22 mph (143.58 km/h) |
| 95 mph (152.89 km/h) | 94.17 mph (151.56 km/h) |
| 100 mph (160.93 km/h) | 99.13 mph (159.54 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
