hjc c91 prod helmet Solid Modular Motorcycle with HJ-17 Pinlock Shield, DOT Approved (White, Large) : Automotive The large top vent allows airflow through the deep EPS channels of the helmet HJC - C91 Modular Helmet

The best ways to measure your head are with a soft tape measure or a piece of string and a tape measure

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7.What warranty do you offer

These were only available for one year and should be considered rare

I had to add a washer as it was laying line a bit top heavy