Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/60-15 | 145/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.8 (579) | 22.42 (569.5) | -0.37 (-9.5) -1.6% |
| Width inches (mm) | 6.5 (165) | 5.71 (145) | -0.79 (-20) -12.1% |
| Circum. inches (mm) | 71.61 (1818.98) | 70.44 (1789.14) | -1.18 (-29.85) -1.6% |
| Sidewall Height inches (mm) | 3.9 (99) | 3.71 (94.25) | -0.19 (-4.75) -4.8% |
| Revolutions per mile (km) | 884.75 (549.76) | 899.51 (558.93) | 14.76 (9.17) 1.7% |
145/65-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.67 mph (31.66 km/h) |
| 25 mph (40.23 km/h) | 24.59 mph (39.57 km/h) |
| 30 mph (48.28 km/h) | 29.51 mph (47.49 km/h) |
| 35 mph (56.33 km/h) | 34.43 mph (55.4 km/h) |
| 40 mph (64.37 km/h) | 39.34 mph (63.32 km/h) |
| 45 mph (72.42 km/h) | 44.26 mph (71.23 km/h) |
| 50 mph (80.47 km/h) | 49.18 mph (79.15 km/h) |
| 55 mph (88.51 km/h) | 54.1 mph (87.06 km/h) |
| 60 mph (96.56 km/h) | 59.02 mph (94.98 km/h) |
| 65 mph (104.61 km/h) | 63.93 mph (102.89 km/h) |
| 70 mph (112.65 km/h) | 68.85 mph (110.81 km/h) |
| 75 mph (120.7 km/h) | 73.77 mph (118.72 km/h) |
| 80 mph (128.75 km/h) | 78.69 mph (126.64 km/h) |
| 85 mph (136.79 km/h) | 83.61 mph (134.55 km/h) |
| 90 mph (144.84 km/h) | 88.52 mph (142.46 km/h) |
| 95 mph (152.89 km/h) | 93.44 mph (150.38 km/h) |
| 100 mph (160.93 km/h) | 98.36 mph (158.29 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2289 | 2659 | 2864 | 2990 | 3127 | 3224 | 3331 | 3458 | 3633 | 3809 | 4003 | 4159 | 4442 | 4753 | 4997 | 5153 | 5241 | 5562 | 6010 | 6984 |
Better Fuel Economy Factory Ratios Increased Power
