Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/60-13 | 135/40-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 19.85 (504.2) | 16.25 (412.8) | -3.6 (-91.4) -18.1% |
| Width inches (mm) | 5.71 (145) | 5.31 (135) | -0.39 (-10) -6.9% |
| Circum. inches (mm) | 62.36 (1583.99) | 51.06 (1296.85) | -11.3 (-287.14) -18.1% |
| Sidewall Height inches (mm) | 3.43 (87) | 2.13 (54) | -1.3 (-33) -37.9% |
| Revolutions per mile (km) | 1016.01 (631.32) | 1240.96 (771.1) | 224.96 (139.78) 22.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 16.37 mph (26.35 km/h) |
| 25 mph (40.23 km/h) | 20.47 mph (32.94 km/h) |
| 30 mph (48.28 km/h) | 24.56 mph (39.53 km/h) |
| 35 mph (56.33 km/h) | 28.66 mph (46.12 km/h) |
| 40 mph (64.37 km/h) | 32.75 mph (52.7 km/h) |
| 45 mph (72.42 km/h) | 36.84 mph (59.29 km/h) |
| 50 mph (80.47 km/h) | 40.94 mph (65.88 km/h) |
| 55 mph (88.51 km/h) | 45.03 mph (72.47 km/h) |
| 60 mph (96.56 km/h) | 49.12 mph (79.06 km/h) |
| 65 mph (104.61 km/h) | 53.22 mph (85.64 km/h) |
| 70 mph (112.65 km/h) | 57.31 mph (92.23 km/h) |
| 75 mph (120.7 km/h) | 61.4 mph (98.82 km/h) |
| 80 mph (128.75 km/h) | 65.5 mph (105.41 km/h) |
| 85 mph (136.79 km/h) | 69.59 mph (112 km/h) |
| 90 mph (144.84 km/h) | 73.69 mph (118.58 km/h) |
| 95 mph (152.89 km/h) | 77.78 mph (125.17 km/h) |
| 100 mph (160.93 km/h) | 81.87 mph (131.76 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
