Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/50-13 | 185/60-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 19.89 (505.2) | 21.74 (552.2) | 1.85 (47) 9.3% |
| Width inches (mm) | 6.89 (175) | 7.28 (185) | 0.39 (10) 5.7% |
| Circum. inches (mm) | 62.49 (1587.13) | 68.3 (1734.79) | 5.81 (147.65) 9.3% |
| Sidewall Height inches (mm) | 3.44 (87.5) | 4.37 (111) | 0.93 (23.5) 26.9% |
| Revolutions per mile (km) | 1013.99 (630.07) | 927.69 (576.44) | -86.31 (-53.63) -8.5% |
185/60-13 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.86 mph (35.18 km/h) |
| 25 mph (40.23 km/h) | 27.33 mph (43.98 km/h) |
| 30 mph (48.28 km/h) | 32.79 mph (52.77 km/h) |
| 35 mph (56.33 km/h) | 38.26 mph (61.57 km/h) |
| 40 mph (64.37 km/h) | 43.72 mph (70.36 km/h) |
| 45 mph (72.42 km/h) | 49.19 mph (79.16 km/h) |
| 50 mph (80.47 km/h) | 54.65 mph (87.95 km/h) |
| 55 mph (88.51 km/h) | 60.12 mph (96.75 km/h) |
| 60 mph (96.56 km/h) | 65.58 mph (105.54 km/h) |
| 65 mph (104.61 km/h) | 71.05 mph (114.34 km/h) |
| 70 mph (112.65 km/h) | 76.51 mph (123.13 km/h) |
| 75 mph (120.7 km/h) | 81.98 mph (131.93 km/h) |
| 80 mph (128.75 km/h) | 87.44 mph (140.73 km/h) |
| 85 mph (136.79 km/h) | 92.91 mph (149.52 km/h) |
| 90 mph (144.84 km/h) | 98.37 mph (158.32 km/h) |
| 95 mph (152.89 km/h) | 103.84 mph (167.11 km/h) |
| 100 mph (160.93 km/h) | 109.3 mph (175.91 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
