Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/65-13 | 185/60-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.47 (570.7) | 21.74 (552.2) | -0.73 (-18.5) -3.2% |
| Width inches (mm) | 7.28 (185) | 7.28 (185) | 0 (0) 0% |
| Circum. inches (mm) | 70.59 (1792.91) | 68.3 (1734.79) | -2.29 (-58.12) -3.2% |
| Sidewall Height inches (mm) | 4.73 (120.25) | 4.37 (111) | -0.36 (-9.25) -7.7% |
| Revolutions per mile (km) | 897.62 (557.75) | 927.69 (576.44) | 30.07 (18.69) 3.4% |
185/60-13 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.35 mph (31.14 km/h) |
| 25 mph (40.23 km/h) | 24.19 mph (38.93 km/h) |
| 30 mph (48.28 km/h) | 29.03 mph (46.72 km/h) |
| 35 mph (56.33 km/h) | 33.87 mph (54.5 km/h) |
| 40 mph (64.37 km/h) | 38.7 mph (62.29 km/h) |
| 45 mph (72.42 km/h) | 43.54 mph (70.07 km/h) |
| 50 mph (80.47 km/h) | 48.38 mph (77.86 km/h) |
| 55 mph (88.51 km/h) | 53.22 mph (85.64 km/h) |
| 60 mph (96.56 km/h) | 58.06 mph (93.43 km/h) |
| 65 mph (104.61 km/h) | 62.89 mph (101.22 km/h) |
| 70 mph (112.65 km/h) | 67.73 mph (109 km/h) |
| 75 mph (120.7 km/h) | 72.57 mph (116.79 km/h) |
| 80 mph (128.75 km/h) | 77.41 mph (124.57 km/h) |
| 85 mph (136.79 km/h) | 82.24 mph (132.36 km/h) |
| 90 mph (144.84 km/h) | 87.08 mph (140.15 km/h) |
| 95 mph (152.89 km/h) | 91.92 mph (147.93 km/h) |
| 100 mph (160.93 km/h) | 96.76 mph (155.72 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
