Do the external dimensions of motorbike helmets vary according to type and quality?
Answers:
Yes, they are different sizes. Try different brands. More expensive helmets tend to be lighter, although not always.
all heads are different, mabye you have a unsuually small head
The quality of a helmet may not be determined by it's size, a bulkier hem lent may be lower quality materials and need more of them to have the same impact resistance as a smaller helmet made of better materials.
Would you rather have plastic, fiberglass or carbon fiber protecting your brain?
i don't know i don't wear one
Yes Motorbike Helmets do vary in outside dimensions. Depending on the maker, not the cost
Yes, there are all sorts, as for it looking odd on your head, most of us think that with the first one I think. you will get used to it,
Yes some of the more expensive helmets do have 2 or 3 different shell sizes depending upon the head size S / M / L . although these may be expensive you do get what you pay for . The best advice would come from a bike shop where you could get help to choose the best one for you.
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