Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/55-14 | 185/60-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.01 (559.1) | 21.74 (552.2) | -0.27 (-6.9) -1.2% |
| Width inches (mm) | 7.28 (185) | 7.28 (185) | 0 (0) 0% |
| Circum. inches (mm) | 69.15 (1756.46) | 68.3 (1734.79) | -0.85 (-21.68) -1.2% |
| Sidewall Height inches (mm) | 4.01 (101.75) | 4.37 (111) | 0.36 (9.25) 9.1% |
| Revolutions per mile (km) | 916.24 (569.32) | 927.69 (576.44) | 11.45 (7.11) 1.2% |
185/60-13 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.75 mph (31.79 km/h) |
| 25 mph (40.23 km/h) | 24.69 mph (39.74 km/h) |
| 30 mph (48.28 km/h) | 29.63 mph (47.68 km/h) |
| 35 mph (56.33 km/h) | 34.57 mph (55.63 km/h) |
| 40 mph (64.37 km/h) | 39.51 mph (63.58 km/h) |
| 45 mph (72.42 km/h) | 44.44 mph (71.53 km/h) |
| 50 mph (80.47 km/h) | 49.38 mph (79.47 km/h) |
| 55 mph (88.51 km/h) | 54.32 mph (87.42 km/h) |
| 60 mph (96.56 km/h) | 59.26 mph (95.37 km/h) |
| 65 mph (104.61 km/h) | 64.2 mph (103.32 km/h) |
| 70 mph (112.65 km/h) | 69.14 mph (111.26 km/h) |
| 75 mph (120.7 km/h) | 74.07 mph (119.21 km/h) |
| 80 mph (128.75 km/h) | 79.01 mph (127.16 km/h) |
| 85 mph (136.79 km/h) | 83.95 mph (135.11 km/h) |
| 90 mph (144.84 km/h) | 88.89 mph (143.05 km/h) |
| 95 mph (152.89 km/h) | 93.83 mph (151 km/h) |
| 100 mph (160.93 km/h) | 98.77 mph (158.95 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
