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New For 2010 The Arai SK6 has been designed specifically for karting and uses the same, highly developed and immensely strong shell as the GP-6S race helmet with Complex Laminate Construction for light-weight. The durable, non-nomex lining is specifically designed to satisfy the extreme demands of this motosport discipline, as is the unique ventilation system.
Snell K2005 Approved. (Not flame retardant
Helmet Size
How to measure your head to get the correct helmet size.
Using a tape measure or a piece of string, measure around your head just above the eyebrows and ears. Taking the measurements obtained in centimetres. This will give you your nominal helmet size. You may wish to buy a slightly larger or smaller size depending on your personal preference e.g. if you prefer a tighter fit, buy one size smaller. Helmet linings do compress, so if your helmet is slightly tight to start with, this is quite normal.
If possible, try on a helmet of the same make and model that you require, as size does vary between different helmet manufacturers.
Helmet Sizing Chart
50-51cms XX Small
52-53cms X Small
54-56cms Small
57-58cms Medium
59-60cms Large
61-62cms X Large
63-64cms XX Large