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Here is some info from Dylan that you might find interesting:


Dunlop just released a new sportbike tire, the Q4. This tire is different from what many think it is. It is NOT an improved Q3+ but rather a whole new category of tire. Its purpose is to provide a street legal tire with excellent grip, no need for warmers, that is at home on the track or on your favorite twisty road. Essentially it fills the gap between the Q3+ and the street legal race tire, the GPA Pro.


So the progression looks like this:

Q3+. Best all purpose tire. Harder center band for commuting, with sides well suited for cornering.

Q4. Best for trackdays and canyons/twisty roads. Warms fast, less sensitive to pressure settings. Single compound across entire tread. Any loss in overall mileage is gained in grip compared to Q3+.

GPA Pro. Essentially a race slick with grooves. Warmers strongly recommended particularly when cool and pressures checked and set before riding. Street legal. Poor choice for commuting but good for twisty roads and very much at home on the track.

Slicks. Pure track only tire. Warmers strongly recommended with pressures checked and set before riding.

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On 8/22/2018 at 5:19 PM, Dylan Code said:

No we are going to be sticking with the Q3+ on the fleet bikes due to its all around versatility, durability, etc.

Bummer! Perhaps you guys can provide them as an option for the Code RACE? I typically opt for the slicks on those days, but would be nice to have an option for something stickier than the Q3+ that will heat up a little faster than the slicks.

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Sure if it's cold the Q4 would probably be a better choice than the slicks but the slicks will grip better when they have warmed up. Yes if someone wants to upgrade to the Q4 that's no problem.

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