Engner66 wrote:
desert dude wrote:
DFW_Tri wrote:
Ok but you choose a lighter brick if it’s equally as fast (or possibly faster). As noted, this will always be rider-specific but if you aren’t going to test, might as well use one of the fastest testing g helmets that’s also light..
If you play the averages on this:
Switching to the Aerohead gives you a 90% chance on the low side and maybe as much as 95% chance it'll be faster than whatever you're switching from.
Switching to the Rudy Wing is a 50% chance on the low side and maybe a 60% chance on the high side it'll be faster than whatever you're switching from.
When I think about which helmet I recommend when someone consults I take into account where they place, goals/aspirations. The closer they are to the front of their AG or the race overall or a pro or those are their realistic goals I recommend the Aerohead if they aren't testing. But, if they have tried the aerohead than it's the Poc cerebral or the Rudy choose whichever fits best, costs less and you can find although I'd say the POC has maybe a 10% increase in chance to work better than the Rudy.
Hope that helps everyone
I read this over and over again here in ST and I always question it. Not saying that the Aerohead is a slow helmet, but from a pure aerodynamics/fluid mechanics perspective, why will the Aerohead "always (95%)" test faster than all the other helmets that have similar shapes, materials, etc. ?
In my own testing, I could not find any difference between the Aerohead and the Bell Javelin or the Catlike Rapid Tri. All three of them were faster than the Air Shield.
If the Aerohead would have a proprietary patented shape different from the other helmets, I could see it...but . What am I missing? I would also argue that 95% of folks who do a lot of unbiased aero testing work, do not end up with the Aerohead (Say Frodo, Ditlev)
It's very personally dependent: very very, because everyone has a different body and sits differently on the bike.
The only assertion is, that the aerohead tests aerodynamically very good in MOST configurations. And a configuration is dynamic: a test in a windtunnel with a fixed position does not help a lot. In the real world you constantly change the position of your head. At least I have to sight every 2 or 3 seconds, since in full aeroposition I cannot see the road in front of me.
That's why I have the aerohead, I'm too lazy to test other helmets (whereby executing a testing protocol is not so easy too).
To me an aerohead is not too hot or heavy (I did numerous very hot IMs with it). It is true you see the edge a bit on top when in aeroposition, but hardly. This becomes also better when you fasten the turning button, actuating the plastic strap around the head, I noticed. With a loose plastic strap the helmet falls downwardly blocking the vision at the top.
Disadvantage of the aerohead: every visor breaks in the middle starting at the bottom: I had to replace it more often. Furthermore the visor is fantastic: it is held firmly by the magnets and you can store the visor on the top of the helmet.