- An aero helmet is obviously designed for aero gains,
but how much of an advantage do you actually get
from using an aero helmet over using a road helmet?
Well, in a wind tunnel this is gonna win hands down.
But in reality there are so many factors to consider
when you're choosing what helmet to use for your next race.
Well, we're going to be looking
into those factors in a moment
and then we're gonna finish it off
with a head to head time trial versus.
(whooshing)
(upbeat music)
Riding position is often overlooked
and it's easy to think that wearing an aero helmet
is gonna make you more aero dynamic overall.
And that isn't always so,
if you've got a very high up position
or you move your head around a lot,
then it could end up being detrimental.
And you also need to consider the type of course
you're going to be racing and the conditions.
Being super aero at home on your turbo
or on smooth flat roads is one thing,
but if your course is gonna have sharp corners,
rough surfaces, steep hills or even really windy,
anything that's gonna mean
that you're gonna have to come off your aero bars
and onto your base bars
then you're probably going to be better off
with just a normal road helmet.
Talking of the external factors,
the weather and the climate
should also be taken into consideration.
Obviously aero helmets don't have
quite as much ventilation as a road helmet does.
So if you are doing a long race in hot, humid conditions
then you might find you start to overheat.
Although some aero helmets will have more ventilation
and some even have gaps you can pull
water are over your head.
But, the opposite goes if you're racing in cold climate.
And I've actually enjoyed the benefits of an aero helmet
when racing a TT in the UK that's a bit chilly.
And to be honest, I'm quite looking forward
to wearing it today 'cause it's a little bit cold.
OK, so it's time to look at the numbers.
We can't ignore the cost difference
between these two helmets.
The aero helmet will cost more than the road helmet.
And if you're only going to be buying one,
you're probably going to get more use
out of your road helmet.
Although having said that,
there is now an option on the market
that sits somewhere in between the two.
And that is the aero road helmet, such as the Kask Infinity.
And whilst we're sticking with numbers
it is worth mentioning the weight.
The difference is pretty negligible to be honest.
And I can't really notice it holding them here.
Although apparently the road helmet
is slightly lighter than the aero helmet.
Most aero helmets will cover your ears like this one.
So it will reduce your hearing slightly.
But, hopefully in a race you shouldn't really need
to hear that much anyway.
And I personally quite like it
'cause it helps me get into the zone
and really get into that race mode.
And the same goes a little bit for your vision
as it will slightly reduce your peripheral vision.
Comfort should play an important part
when you're choosing what helmet to race in.
And it comes down to personal preference.
So I'd highly recommend that you try before you buy.
Now for example in Kona, I actually opted for my road helmet
'cause I felt that the benefit of keeping cool
would outweigh any aero benefits.
Take into account the distance of your races.
The shorter it is, the less significant
the difference is going to be between the two.
And it might take a little getting used
to taking your aero helmet on and off,
which could cost you a few seconds.
So that's just another factor
that you might want to consider.
So I'm going to do two runs,
holding an average of 250 watts,
for 2k up the road.
First, I'm gonna do it in my road helmet
and then I'm going to it in my aero helmet.
Well, I think it's time to get started.
(upbeat music)
OK, pretty accurate.
247 on the average watts.
And the time was three minutes 39 seconds.
And I mean it is a little bit breezy out there
so that last bit I just had to come onto my base bars
as well because the hill gets a bit steep.
But tried to stay pretty close to my target.
(upbeat music)
Argh!
Yes, just missed a couple of seconds there,
I think 'cause I couldn't quite get it to pause.
But, interestingly it is quicker.
Although by the time I pressed the button
only two seconds quicker.
So that was a three 37.
Now that does sound good, but let's have a look.
My watts are higher.
I actually averaged 260 on that run.
I'm not really sure how
because I didn't feel like I was working any harder
and it felt a bit smoother,
but maybe I just got my race helmet on
and I got into race zone a bit too much, I'm not sure.
But, as you can see, there's water on my visor.
And it did rain a little bit.
And I think the wind has picked up
so I guess you've got to take that into consideration.
There was very little difference
between the road helmet and the aero helmet.
There are few things to consider though,
it was a short course, we only did it once with each.
I wasn't quite as accurate with my watts as I'd hoped to be.
And the weather was a little bit changeable.
So I think that does call for a more thorough
investigation in the future.
But sadly, that was all we had time for today.
Well, if you're enjoyed this
and you want more videos from GTN,
just hit the globe to subscribe.
And if you want to look at another comparison,
Mark actually compared a time trial bike with a road bike
and that video is just here.
And if you want to see some tips on how to get more aero,
there's a piece with pro triathlete Bart Aernouts just here.
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