Need to buy a new helmet for my wife and saw a positive review of the 2013 Real G-Force helmet on another site. Anyone here had any experience with Real Helmets. Wondering what kind of difference I can expect between the 2700 Baht Real and the next level 4000+ Baht Sharks. In particular I am concerned about the noise levels at high speed, which you cannot really test in the shop. Any advice or opinions appreciated.