I own both thr HJC FG-JET and AGV K5 JET. My personal opinion on the 2 helmets :
-Superb air-flow, owned many open face helmets, this by far is the best. Can really feel the air flow on the top of your head.
-Very value for dollar, Fiberglass shell and internal sun visor for $200.
-Good finishing, paint quality is good and the shell is damn solid. Dropped it many times, no damage except the paint abit scratched.
-The helmet wind noise reduction is quite poor, Ah boyâ€™s $80 EVO helmet fared much better in this aspect.
-Visor scratches extremely easily.