Car & Bike Which helmet?

Go for something that is ECE certified; they are safer compared to ISI certified ones.
If there's any helmet that is DOT+ECE+ISI certified, then it is best.
 
I dont own this yet but had my eyes on it.
Axor Apex Solid
It is DOT+ECE+ISI certified and looks great too. Kind of gives the look of agv helmets.
Only con I could hear from reviews is that It is heavy. Please visit offline stores and check for size and weight.