VOL. 55 ISSUE 22 JUNE 5, 2018 P109
The Q4s feature Dunlop's Carbon Fiber Tech-
nology (CFT) to give added stability in the side-
walls and Dunlop has used what it calls its Intuitive
Response Profile (IRP) to aid turn-in speed and
responsiveness via a taller profile with sides that
taper in and allow more of the tire to flatten out
more, putting more rubber on the ground when
cornering.
"Profile design is one of the biggest ways we
based silica compound, the rear compound in the
Q4 has no silica and uses all-carbon black like the
slick race tires (and the center compound in the
Q3) for maximum grip at high lean angles.
"We wanted this compound to be softer than
the Q3+ to give us that extra grip but also allow
us to not be a tire warmer tire," says Robinson.
"That means you're going to have grip as soon as
you go out on track. Fast warm-up times was one
of the design objectives, but you're going to get
more overall performance out of the Q4 than the
Q3+."
(Right) Here
you can see
the lack of side
grooves in the
Q4. It's almost
a proper slick.
(Left) The
Kawasaki
ZX-10R gave
the rear Q4
a proper
punishing but
the front held
up well across
the day.
