Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/60-13 | 135/80-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 19.85 (504.2) | 21.5 (546.2) | 1.65 (42) 8.3% |
| Width inches (mm) | 5.71 (145) | 5.31 (135) | -0.39 (-10) -6.9% |
| Circum. inches (mm) | 62.36 (1583.99) | 67.56 (1715.94) | 5.19 (131.95) 8.3% |
| Sidewall Height inches (mm) | 3.43 (87) | 4.25 (108) | 0.83 (21) 24.1% |
| Revolutions per mile (km) | 1016.01 (631.32) | 937.88 (582.77) | -78.13 (-48.54) -7.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.67 mph (34.87 km/h) |
| 25 mph (40.23 km/h) | 27.08 mph (43.59 km/h) |
| 30 mph (48.28 km/h) | 32.5 mph (52.3 km/h) |
| 35 mph (56.33 km/h) | 37.92 mph (61.02 km/h) |
| 40 mph (64.37 km/h) | 43.33 mph (69.74 km/h) |
| 45 mph (72.42 km/h) | 48.75 mph (78.45 km/h) |
| 50 mph (80.47 km/h) | 54.17 mph (87.17 km/h) |
| 55 mph (88.51 km/h) | 59.58 mph (95.89 km/h) |
| 60 mph (96.56 km/h) | 65 mph (104.6 km/h) |
| 65 mph (104.61 km/h) | 70.41 mph (113.32 km/h) |
| 70 mph (112.65 km/h) | 75.83 mph (122.04 km/h) |
| 75 mph (120.7 km/h) | 81.25 mph (130.76 km/h) |
| 80 mph (128.75 km/h) | 86.66 mph (139.47 km/h) |
| 85 mph (136.79 km/h) | 92.08 mph (148.19 km/h) |
| 90 mph (144.84 km/h) | 97.5 mph (156.91 km/h) |
| 95 mph (152.89 km/h) | 102.91 mph (165.62 km/h) |
| 100 mph (160.93 km/h) | 108.33 mph (174.34 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
