Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/60-13 | 135/60-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 19.85 (504.2) | 18.38 (466.8) | -1.47 (-37.4) -7.4% |
| Width inches (mm) | 5.71 (145) | 5.31 (135) | -0.39 (-10) -6.9% |
| Circum. inches (mm) | 62.36 (1583.99) | 57.74 (1466.5) | -4.63 (-117.5) -7.4% |
| Sidewall Height inches (mm) | 3.43 (87) | 3.19 (81) | -0.24 (-6) -6.9% |
| Revolutions per mile (km) | 1016.01 (631.32) | 1097.41 (681.9) | 81.4 (50.58) 8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.52 mph (29.8 km/h) |
| 25 mph (40.23 km/h) | 23.15 mph (37.25 km/h) |
| 30 mph (48.28 km/h) | 27.77 mph (44.7 km/h) |
| 35 mph (56.33 km/h) | 32.4 mph (52.15 km/h) |
| 40 mph (64.37 km/h) | 37.03 mph (59.6 km/h) |
| 45 mph (72.42 km/h) | 41.66 mph (67.05 km/h) |
| 50 mph (80.47 km/h) | 46.29 mph (74.5 km/h) |
| 55 mph (88.51 km/h) | 50.92 mph (81.95 km/h) |
| 60 mph (96.56 km/h) | 55.55 mph (89.4 km/h) |
| 65 mph (104.61 km/h) | 60.18 mph (96.85 km/h) |
| 70 mph (112.65 km/h) | 64.81 mph (104.3 km/h) |
| 75 mph (120.7 km/h) | 69.44 mph (111.75 km/h) |
| 80 mph (128.75 km/h) | 74.07 mph (119.2 km/h) |
| 85 mph (136.79 km/h) | 78.69 mph (126.65 km/h) |
| 90 mph (144.84 km/h) | 83.32 mph (134.1 km/h) |
| 95 mph (152.89 km/h) | 87.95 mph (141.55 km/h) |
| 100 mph (160.93 km/h) | 92.58 mph (149 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
