I just ordered my Rockhard 3/4 Black Matte Helmet today, gonna be here Wed. I used a flexible tape measure, and used the sizing chart from Rockhard, I fit a Large exactly. So I ordered a Large. We will see when it comes in Wed. Ive been told to expect it to fit snug then with wear it will loosen up to fit perfectly. So, we will see
Let us know how it fits when it comes in + take picture. I have been looking at the Rockhard online, but I,ve tried the Fulmer V2 & Bell 500 at a couple local HD dealers. My head measures 22 3/8 which is a medium in Bells size chart and I wear a medium in HJC, KBC & ZR1, but the Bell 500 "Med" felt very tight, the Fulmer V2 "Med" felt snug, but not as tight as the Bell. I need to try on a large in both an see how they feel.
I have the Fulmer 3/4 and wear it quite a bit. Just remember, any helmet will compact over time as you wear it. Mine certainly does not fit just as it did when new.