Are there any published testing results, apart from the
Virginia Tech tests? I am a bit worried that their listing doesn't give the whole picture.
For example, the Lazer G1 MIPS is top of the road helmet list, and second overall. It is light and extremely well-ventilated (which is good news to me, as I was about to buy a second Bontrager Wavecel, which is substantially heavier, hotter, and now quite a bit further down the list). But the customer reviews of this on various vendor websites (eg, BikeTiresDirect) consistently cite the retention system as unreliable. What good is a helmet if you can't keep it strapped on properly?
I think the problem is that the VT test only measures what they believe to be concussion protection, but other aspects like a helmet's retention system are absolutely critical. Also, how a helmet behaves during a catastrophic crash might be very different from how it behaves if you fall off your bike at low speed and your head hits the pavement.
This is really frustrating.
I mainly use a Bontrager Wavecel on my mountain bike, and a (non-MIPS) Giro air attack on my road bike (primarily because I like the magnetic lens attachment, I am not the least bit aero), but am looking to replace it due to the lack of any concussion protection. (We just had a fatality locally from a low-speed head-strike, and another rider I know well just suffered a concussion.)
BTW, the VT list is kind of interesting. Number 3 on the road bike helmet list is a $50 MIPS Specialized Align II. Wavecel is quite a bit further down the list, now. It does make me wonder if we now are having helmets designed to score well on the VT list, which could be problematic if the tests don't have a high degree of real-world relevance.