Originally Posted by
Elvo
According to them it is almost as aerodynamic as a TT helmet but is lighter and cooler. My point is that the $220 price delta buys you something that has quantifiable differences (wind tunnel tested, temperature tested, MIPS). The comfort differences are subjective but the roc loc air does allow more adjustment and x-static is a fancy textile used in other performance sports.
That's all fair, as far as it goes.
But we are comparing inexpensive vs. expensive helmets. In this particular comparo, the weights are essentially identical, and it's very unlikely that the expensive helmet is more comfortable or cooler.
It is probably fractionally faster, but no one will notice that in a recreational and/or training ride.
A time trialist will care, but that's about it.