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  • Dunlop Q4 Front
  • Dunlop Q4 Front
  • Dunlop Q4 Front
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Product Description

MADE IN USA,   Free Shipping


F E A T U R E S & B E N E F I T S
• This purpose-built track-day tire achieves lean angles up to 62 degrees*, more than any other street-legal tire Dunlop has ever made.
• The user-friendly Q4 does not require tire warmers, and runs at street pressures, eliminating the need for chassis or electronic adjustments.
• Rear tire compound contains carbon black like Dunlop’s racing slicks for maximum grip.
• Jointless Tread (JLT) technology uses a continuously wound strip compound to optimize stability, flex, and grip across the rear tread profile.
• Carbon Fiber Technology (CFT) uses carbon fiber reinforcement in the sidewalls for exceptional cornering performance, braking stability and feel.
• On Tread Branding—raised letters built into the sidewall.
• Made in the U.S.A.


Racing technology drove the Q4 design. The rear tire compound itself has
no silica—it’s all carbon black like Dunlop’s racing slicks for maximum grip.
Construction also follows Dunlop’s race tire protocol: The rear tire tread
features Dunlop’s Jointless Tread (JLT) technology. Using the same
process as Dunlop’s racing slicks, sophisticated production machinery in
the Buffalo plant winds the tire tread compound over the carcass in a
narrow, continuous strip. This continuously wound strip allows Dunlop to
optimize placement of the compound in specific areas of the tire to
achieve the ideal stability, flex, and grip where it’s needed most across the
tire’s tread profile.

JLT helps increase tire stability and reduce flex, and helps create a larger
more consistent footprint during braking, cornering and acceleration.
Another benefit of JLT construction: The rear tire is up to one pound lighter
than the same size Q3+, so there’s less mass for increased acceleration.

Both front and rear tires also utilize Dunlop’s proprietary Carbon Fiber
Technology (CFT) in the sidewalls for even greater stability. CFT places a
carbon fiber reinforcement element in the tire sidewalls. This innovation
delivers exceptional cornering stability especially at high lean angles,
responsive and precise steering characteristics, and predictable and
smooth transitional-steering performance for more confidence-inspiring
handling. Carbon fiber’s high stiffness, high-tensile strength, low weight,
high-chemical resistance, high-temperature tolerance and low-thermal
expansion make it a great match for application in the Q4.

The Q4 also features Dunlop’s proprietary Intuitive Response Profile (IRP)
for ultra-linear and responsive steering. This innovative profile design
allows for a taller tire profile along with sides that taper in more aggressively
for remarkable turn-in response and feel. Cross-sectional analysis
demonstrates this design creates a larger contact patch when cornering.


Q4 development took place over a year, and testing was done at Dunlop’s Huntsville Proving
Grounds (HPG), Virginia International Raceway, Chuckwalla Valley Raceway, and Roebling Road
Raceway, by Dunlop staff as well as professional racers. Several new compounds were developed
and tried, with the final mix contributing to lap times that were more than a second
quicker than the Q3+.

According to the newest HPG test rider, Taylor Knapp, the most apparent advantage of the
new Q4 on the race track is grip and predictability.

“It’s like a slick,” said Knapp. “Handling is really predictable, you can brake later and get on
the gas harder and earlier, and that chips away at the lap times all the way around the track.”

Product Videos

Dunlop Sportmax Q4 Trackday Tire (01:55)
Check out some of the behind the scenes riding from the Dunlop Q4 Press Launch. May 2018
  • Dunlop Sportma...
    Check out some of the behind the scenes riding from the Dunlop...

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