Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/80-13 | 165/40-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.5 (546.2) | 19.2 (487.6) | -2.31 (-58.6) -10.7% |
| Width inches (mm) | 5.31 (135) | 6.5 (165) | 1.18 (30) 22.2% |
| Circum. inches (mm) | 67.56 (1715.94) | 60.31 (1531.84) | -7.25 (-184.1) -10.7% |
| Sidewall Height inches (mm) | 4.25 (108) | 2.6 (66) | -1.65 (-42) -38.9% |
| Revolutions per mile (km) | 937.88 (582.77) | 1050.59 (652.81) | 112.71 (70.04) 12% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.85 mph (28.73 km/h) |
| 25 mph (40.23 km/h) | 22.32 mph (35.92 km/h) |
| 30 mph (48.28 km/h) | 26.78 mph (43.1 km/h) |
| 35 mph (56.33 km/h) | 31.24 mph (50.28 km/h) |
| 40 mph (64.37 km/h) | 35.71 mph (57.47 km/h) |
| 45 mph (72.42 km/h) | 40.17 mph (64.65 km/h) |
| 50 mph (80.47 km/h) | 44.64 mph (71.83 km/h) |
| 55 mph (88.51 km/h) | 49.1 mph (79.02 km/h) |
| 60 mph (96.56 km/h) | 53.56 mph (86.2 km/h) |
| 65 mph (104.61 km/h) | 58.03 mph (93.38 km/h) |
| 70 mph (112.65 km/h) | 62.49 mph (100.57 km/h) |
| 75 mph (120.7 km/h) | 66.95 mph (107.75 km/h) |
| 80 mph (128.75 km/h) | 71.42 mph (114.93 km/h) |
| 85 mph (136.79 km/h) | 75.88 mph (122.12 km/h) |
| 90 mph (144.84 km/h) | 80.34 mph (129.3 km/h) |
| 95 mph (152.89 km/h) | 84.81 mph (136.49 km/h) |
| 100 mph (160.93 km/h) | 89.27 mph (143.67 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
