Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/65-13 | 185/65-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.44 (544.7) | 22.47 (570.7) | 1.02 (26) 4.8% |
| Width inches (mm) | 6.5 (165) | 7.28 (185) | 0.79 (20) 12.1% |
| Circum. inches (mm) | 67.37 (1711.23) | 70.59 (1792.91) | 3.22 (81.68) 4.8% |
| Sidewall Height inches (mm) | 4.22 (107.25) | 4.73 (120.25) | 0.51 (13) 12.1% |
| Revolutions per mile (km) | 940.46 (584.38) | 897.62 (557.75) | -42.85 (-26.62) -4.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.95 mph (33.72 km/h) |
| 25 mph (40.23 km/h) | 26.19 mph (42.15 km/h) |
| 30 mph (48.28 km/h) | 31.43 mph (50.58 km/h) |
| 35 mph (56.33 km/h) | 36.67 mph (59.02 km/h) |
| 40 mph (64.37 km/h) | 41.91 mph (67.45 km/h) |
| 45 mph (72.42 km/h) | 47.15 mph (75.88 km/h) |
| 50 mph (80.47 km/h) | 52.39 mph (84.31 km/h) |
| 55 mph (88.51 km/h) | 57.63 mph (92.74 km/h) |
| 60 mph (96.56 km/h) | 62.86 mph (101.17 km/h) |
| 65 mph (104.61 km/h) | 68.1 mph (109.6 km/h) |
| 70 mph (112.65 km/h) | 73.34 mph (118.03 km/h) |
| 75 mph (120.7 km/h) | 78.58 mph (126.46 km/h) |
| 80 mph (128.75 km/h) | 83.82 mph (134.89 km/h) |
| 85 mph (136.79 km/h) | 89.06 mph (143.32 km/h) |
| 90 mph (144.84 km/h) | 94.3 mph (151.75 km/h) |
| 95 mph (152.89 km/h) | 99.53 mph (160.19 km/h) |
| 100 mph (160.93 km/h) | 104.77 mph (168.62 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2284 | 2654 | 2858 | 2984 | 3120 | 3217 | 3324 | 3451 | 3626 | 3801 | 3995 | 4151 | 4432 | 4743 | 4987 | 5142 | 5230 | 5550 | 5997 | 6969 |
Better Fuel Economy Factory Ratios Increased Power
