An ideal helmet is one which is of light weight, comfortable to wear and provide high performance protection. So, for determining the correct helmet size measuring the head is the starting point by using a cloth or measuring tape.
So, always start by measuring the circumference of your head. So, head circumference should be taken at a point approximately one inch above the eyebrows in the front and at the point on back of head. While measuring please make sure that the largest one has to be obtained.
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