Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 140/90-15 | 165/90-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.92 (633) | 24.69 (627.2) | -0.23 (-5.8) -0.9% |
| Width inches (mm) | 5.51 (140) | 6.5 (165) | 0.98 (25) 17.9% |
| Circum. inches (mm) | 78.29 (1988.63) | 77.58 (1970.41) | -0.72 (-18.22) -0.9% |
| Sidewall Height inches (mm) | 4.96 (126) | 5.85 (148.5) | 0.89 (22.5) 17.9% |
| Revolutions per mile (km) | 809.27 (502.86) | 816.76 (507.51) | 7.48 (4.65) 0.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.82 mph (31.89 km/h) |
| 25 mph (40.23 km/h) | 24.77 mph (39.87 km/h) |
| 30 mph (48.28 km/h) | 29.73 mph (47.84 km/h) |
| 35 mph (56.33 km/h) | 34.68 mph (55.81 km/h) |
| 40 mph (64.37 km/h) | 39.63 mph (63.78 km/h) |
| 45 mph (72.42 km/h) | 44.59 mph (71.76 km/h) |
| 50 mph (80.47 km/h) | 49.54 mph (79.73 km/h) |
| 55 mph (88.51 km/h) | 54.5 mph (87.7 km/h) |
| 60 mph (96.56 km/h) | 59.45 mph (95.68 km/h) |
| 65 mph (104.61 km/h) | 64.4 mph (103.65 km/h) |
| 70 mph (112.65 km/h) | 69.36 mph (111.62 km/h) |
| 75 mph (120.7 km/h) | 74.31 mph (119.6 km/h) |
| 80 mph (128.75 km/h) | 79.27 mph (127.57 km/h) |
| 85 mph (136.79 km/h) | 84.22 mph (135.54 km/h) |
| 90 mph (144.84 km/h) | 89.18 mph (143.51 km/h) |
| 95 mph (152.89 km/h) | 94.13 mph (151.49 km/h) |
| 100 mph (160.93 km/h) | 99.08 mph (159.46 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2078 | 2415 | 2600 | 2715 | 2839 | 2928 | 3025 | 3140 | 3299 | 3458 | 3635 | 3777 | 4033 | 4316 | 4537 | 4679 | 4758 | 5050 | 5457 | 6342 |
Better Fuel Economy Factory Ratios Increased Power
