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[INTERPOSING VOICES]
[SAW BUZZING]
MARK COTE: [INAUDIBLE].
Let's fire it up.
[MUSIC PLAYING]
SPEAKER 1: This one's TT4.
[MUSIC PLAYING]
MARK COTE: I'm Mark Cote.
I work at Specialized Bikes as an aerodynamicist, working on
a new development for a time trial helmet.
[MUSIC PLAYING]
MARK COTE: The best time trial helmets are actually more
aerodynamic than a bald head.
At the speeds the Tour de France guys are going, this is
30, 40 watts-- we're talking 10% of the total power the
riders are putting out--
is being saved from these kind of helmets.
So there are huge savings.
[MUSIC PLAYING]
MARK COTE: The overall idea is to take what we found to be
the best aerodynamics of all helmets we've over years and
years and years in the TT3, and make that even better, due
to different head positions, different rider styles, those
kind of things.
[MUSIC PLAYING]
MARK COTE: Basically, how aero can we make the bowling ball
that's sitting on top of your neck.
[MUSIC PLAYING]
MARK COTE: This has been a project in
partnership with McLaren.
And they're experts at computational work.
Of course, they make the fastest cars and F1.
But the cool thing on this project--
whatever we're developing and testing in the wind tunnel,
they are also working on in computational fluid dynamics.
MATTHEW WILLIAMS: Computational fluid dynamics
is a process that lets us go from CAD to having an
aerodynamic prediction within hours of coming up with a
conceptual design, whereas when we go to the wind tunnel,
we've got to analyze the results, and that process
could take days, weeks, or months.
[MUSIC PLAYING]
MATTHEW WILLIAMS: With the fence that we have on the TT4,
we actually doing something different to what's been done
previously.
MARK COTE: So one of the cool technologies they've brought
in here-- there's these gills that we built into the side of
the air flow shapes.
And it's actually giving active venting.
MATTHEW WILLIAMS: The dirty air is used for cooling.
So we get rid of the dirty air, and that enables the high
quality air to stay attached as it flows around the helmet,
which keeps the drag of the rider low.
DUNCAN BRADLEY: Very few products
have the McLaren branding.
To have any product that has the McLaren name on it has to
have that intrinsically in the design.
It has to have McLaren kind of DNA inside it.
We specialized--
the vision was really complementary.
I think it's been really, really useful from both sides
to be able to correlate CFD and wind tunnel very, very
accurately.
Now we have that valid tool.
That gives us a chance to do some exciting new things.
[MUSIC PLAYING]
MATTHEW WILLIAMS: To be able to take the tools that we use
in the Formula 1 industry and apply them to cycling is a
fantastic opportunity.
MARK COTE: It's pretty cool to feel like we're getting to
such an optimal design to really benefit the riders.
DUNCAN BRADLEY: The aerodynamics of the TT4 is the
most advanced of anything we've seen so far.
And it's just the starting point.