Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/85-16 | 185/55-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.37 (618.9) | 24.01 (609.9) | -0.35 (-9) -1.5% |
| Width inches (mm) | 4.92 (125) | 7.28 (185) | 2.36 (60) 48% |
| Circum. inches (mm) | 76.55 (1944.33) | 75.44 (1916.06) | -1.11 (-28.27) -1.5% |
| Sidewall Height inches (mm) | 4.18 (106.25) | 4.01 (101.75) | -0.18 (-4.5) -4.2% |
| Revolutions per mile (km) | 827.71 (514.31) | 839.92 (521.9) | 12.21 (7.59) 1.5% |
185/55-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.71 mph (31.72 km/h) |
| 25 mph (40.23 km/h) | 24.64 mph (39.65 km/h) |
| 30 mph (48.28 km/h) | 29.56 mph (47.58 km/h) |
| 35 mph (56.33 km/h) | 34.49 mph (55.51 km/h) |
| 40 mph (64.37 km/h) | 39.42 mph (63.44 km/h) |
| 45 mph (72.42 km/h) | 44.35 mph (71.37 km/h) |
| 50 mph (80.47 km/h) | 49.27 mph (79.3 km/h) |
| 55 mph (88.51 km/h) | 54.2 mph (87.23 km/h) |
| 60 mph (96.56 km/h) | 59.13 mph (95.16 km/h) |
| 65 mph (104.61 km/h) | 64.05 mph (103.09 km/h) |
| 70 mph (112.65 km/h) | 68.98 mph (111.02 km/h) |
| 75 mph (120.7 km/h) | 73.91 mph (118.95 km/h) |
| 80 mph (128.75 km/h) | 78.84 mph (126.88 km/h) |
| 85 mph (136.79 km/h) | 83.76 mph (134.81 km/h) |
| 90 mph (144.84 km/h) | 88.69 mph (142.73 km/h) |
| 95 mph (152.89 km/h) | 93.62 mph (150.66 km/h) |
| 100 mph (160.93 km/h) | 98.55 mph (158.59 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2137 | 2483 | 2674 | 2792 | 2920 | 3011 | 3111 | 3229 | 3393 | 3556 | 3738 | 3884 | 4148 | 4439 | 4666 | 4812 | 4893 | 5194 | 5612 | 6521 |
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