Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/60-13 | 170/60-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 19.85 (504.2) | 21.03 (534.2) | 1.18 (30) 6% |
| Width inches (mm) | 5.71 (145) | 6.69 (170) | 0.98 (25) 17.2% |
| Circum. inches (mm) | 62.36 (1583.99) | 66.07 (1678.24) | 3.71 (94.25) 6% |
| Sidewall Height inches (mm) | 3.43 (87) | 4.02 (102) | 0.59 (15) 17.2% |
| Revolutions per mile (km) | 1016.01 (631.32) | 958.95 (595.86) | -57.06 (-35.45) -5.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.19 mph (34.1 km/h) |
| 25 mph (40.23 km/h) | 26.49 mph (42.63 km/h) |
| 30 mph (48.28 km/h) | 31.79 mph (51.15 km/h) |
| 35 mph (56.33 km/h) | 37.08 mph (59.68 km/h) |
| 40 mph (64.37 km/h) | 42.38 mph (68.2 km/h) |
| 45 mph (72.42 km/h) | 47.68 mph (76.73 km/h) |
| 50 mph (80.47 km/h) | 52.98 mph (85.26 km/h) |
| 55 mph (88.51 km/h) | 58.27 mph (93.78 km/h) |
| 60 mph (96.56 km/h) | 63.57 mph (102.31 km/h) |
| 65 mph (104.61 km/h) | 68.87 mph (110.83 km/h) |
| 70 mph (112.65 km/h) | 74.17 mph (119.36 km/h) |
| 75 mph (120.7 km/h) | 79.46 mph (127.88 km/h) |
| 80 mph (128.75 km/h) | 84.76 mph (136.41 km/h) |
| 85 mph (136.79 km/h) | 90.06 mph (144.93 km/h) |
| 90 mph (144.84 km/h) | 95.36 mph (153.46 km/h) |
| 95 mph (152.89 km/h) | 100.65 mph (161.98 km/h) |
| 100 mph (160.93 km/h) | 105.95 mph (170.51 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
