HJC IS-17

Can HJC Improve the IS Formula? The HJC IS-17 is a sort of mashup between the HJC FG-17 (review) and the HJC CL-17 (review). Both of those helmets were reviewed recently on webBikeWorld and many of you asked for an IS-17 review, so here you go. In the U.S.A., the IS-17 trades the Snell certification for an internal …