A properly fitting helmet is important for safety and comfort while riding a bicycle.
Step 1. Measure your head.
Measure the circumference of your head with a tape measure. Place the tape measure slightly above the ear and bring it across the mid forehead completely circling the head about 1 inch above the eyebrows. Take several measurements to make sure you have the largest size. If you do not have a tape measure, use a string and measure it against a ruler.
Step 2. Choose your helmet. The chart below shows which helmets fit for each head size.
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45cm |
46cm |
47cm |
48cm |
49cm |
50cm |
51cm |
52cm |
53cm |
54cm |
55cm |
56cm |
57cm |
58cm |
59cm |
60cm |
61cm |
62cm |
63cm |
64cm |
| 45-49cm |
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| 45-52cm |
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| 46-50cm |
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| 47-50cm |
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| 47-54cm |
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| 48-51cm |
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| 48-52cm |
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| 48-55cm |
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| 49-53cm |
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| 50-56cm |
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| 50-57cm |
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| 50-57cm |
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| 50-57cm |
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| 52-54cm |
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| 52-56cm |
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| 52-56cm |
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| 52-56cm |
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| 55-57cm |
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| 55-60cm |
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| 56-60cm |
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| 58-60cm |
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| 58-62cm |
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| 60-64cm |
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