Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 195/70-13 | 185/65-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.75 (603.2) | 22.47 (570.7) | -1.28 (-32.5) -5.4% |
| Width inches (mm) | 7.68 (195) | 7.28 (185) | -0.39 (-10) -5.1% |
| Circum. inches (mm) | 74.61 (1895.01) | 70.59 (1792.91) | -4.02 (-102.1) -5.4% |
| Sidewall Height inches (mm) | 5.37 (136.5) | 4.73 (120.25) | -0.64 (-16.25) -11.9% |
| Revolutions per mile (km) | 849.25 (527.7) | 897.62 (557.75) | 48.36 (30.05) 5.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.92 mph (30.45 km/h) |
| 25 mph (40.23 km/h) | 23.65 mph (38.07 km/h) |
| 30 mph (48.28 km/h) | 28.38 mph (45.68 km/h) |
| 35 mph (56.33 km/h) | 33.11 mph (53.29 km/h) |
| 40 mph (64.37 km/h) | 37.84 mph (60.91 km/h) |
| 45 mph (72.42 km/h) | 42.58 mph (68.52 km/h) |
| 50 mph (80.47 km/h) | 47.31 mph (76.13 km/h) |
| 55 mph (88.51 km/h) | 52.04 mph (83.75 km/h) |
| 60 mph (96.56 km/h) | 56.77 mph (91.36 km/h) |
| 65 mph (104.61 km/h) | 61.5 mph (98.97 km/h) |
| 70 mph (112.65 km/h) | 66.23 mph (106.58 km/h) |
| 75 mph (120.7 km/h) | 70.96 mph (114.2 km/h) |
| 80 mph (128.75 km/h) | 75.69 mph (121.81 km/h) |
| 85 mph (136.79 km/h) | 80.42 mph (129.42 km/h) |
| 90 mph (144.84 km/h) | 85.15 mph (137.04 km/h) |
| 95 mph (152.89 km/h) | 89.88 mph (144.65 km/h) |
| 100 mph (160.93 km/h) | 94.61 mph (152.26 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
