Race slicks compounds - ZX6R Forum
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post #1 of 30 Old 08-18-2016, 05:53 PM Thread Starter
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Race slicks compounds

I've been running Dunlop N-TEC slicks on my track bike since I bought it. I'm running med in the front and in the rear and was just curious what a lot of you run and why?

This question doesn't obviously just apply to these tires, as I assume other tire manufactures have different compounds.

Side question is why is the 200 SO MUCH more than a 190 in this particular tire? Is the profile of a 200 really worth that extra $50? And yes, I'm bitching about $50.
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post #2 of 30 Old 08-18-2016, 06:13 PM
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Is it worth it? Depends on if it puts you on the top step of the box or not which may or may not get you that extra 50 bucks.
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post #3 of 30 Old 08-18-2016, 06:30 PM
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Maybe unrelated, but I do track days on my 2013 ZX-6R and recently tried out a set of those Dunlop slicks takeoffs in good condition, in the 200 width. Honestly, even though the sidewall says it fits 5.5"-6.0" width rims (ours are 5.5 as you probably know), my main concern was with how extremely close the left edge of the rear tire was to the chain. I've done two track days with them with no incident so far and I keep my chain just barely lubricated ("just right"), but the next go around, I'm going 190 max. Also felt I had to wrestle the bike alot more in transitions. My 2 cents.
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post #4 of 30 Old 08-18-2016, 06:36 PM Thread Starter
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Is it worth it? Depends on if it puts you on the top step of the box or not which may or may not get you that extra 50 bucks.
Totally agree in that aspect of thinking. I guess I'm asking is what are the pros of running a 200? Quicker turn in and bigger contact patch? I'm just throwing that out there.
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post #5 of 30 Old 08-18-2016, 06:49 PM
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I used to run 190 and 200 Dunlop N-TEC slicks on my 600s. I found turn in was incredible with the 200s since they're pinched on the narrower rim. But, I never would quite get to the edge on the 200s as you almost have to be flat to do it. I'm not sure I was faster on one set over they other. They were definitely a different feel and I could ride either. If money was an object I would have just run 190s.
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post #6 of 30 Old 08-18-2016, 06:54 PM
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For what it's worth, if you check the actual specs on that tire, the 200/55 Dunlop N-tec slick is 194 mm wide. As a comparison, I run the Pirelli Superbike slicks or Supercorsa SC's in 180/60 size and if I recall correctly the actual width of that tire is 189 mm.

Over the last 4-5 years I've tried a bunch of different slicks and DOT race tires from Dunlop, Michelin, Pirelli and Bridgestone, and I've now settled on the Pirellis. I really like the 180/60 rear, so I will be running that from now on, at least on the zx6r.

I have yet to try those new Michelin EVO's, but the previous models of slicks and DOT's from Michelin didn't work well for me. I didn't like the rears at all. The fronts were ok.
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post #7 of 30 Old 08-18-2016, 07:35 PM
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I'm currently running Pirelli Diablo supercorsa SC1 front SC2 rear

And I have a set of DUNLOP KR451 200/55 rear medium+ I believe medium front
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post #8 of 30 Old 08-18-2016, 08:48 PM
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I do not run Dunlop but for compounds I can tell you that I run a medium front and a soft rear.

I like the feed and feedback of the medium front. The soft felt too vague for me.

The soft rear is perfect balance of grip and tire life. I can use medium rears and get a little extra mileage out of them but I have noticed that the grip drops off a lot more rapidly than with the softs.
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post #9 of 30 Old 08-18-2016, 08:49 PM
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Originally Posted by PainfullySlo View Post
I do not run Dunlop but for compounds I can tell you that I run a medium front and a soft rear.

I like the feed and feedback of the medium front. The soft felt too vague for me.

The soft rear is perfect balance of grip and tire life. I can use medium rears and get a little extra mileage out of them but I have noticed that the grip drops off a lot more rapidly than with the softs.
You use the SC0 for the rear??

I'll be trying out the SC1 on the rear this weekend. So far only ran SC2's.

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post #10 of 30 Old 08-18-2016, 10:58 PM
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Originally Posted by madmax31 View Post
Side question is why is the 200 SO MUCH more than a 190 in this particular tire? Is the profile of a 200 really worth that extra $50? And yes, I'm bitching about $50.
Could be an issue of manufacturing volume. If they don;t sell as many, the cost per tire tends to be higher as the tooling fees and set-up costs for a production run are spread out over less tires.
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post #11 of 30 Old 08-19-2016, 01:50 AM
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Originally Posted by sbk1198 View Post
You use the SC0 for the rear??

I'll be trying out the SC1 on the rear this weekend. So far only ran SC2's.
SC2 front, SC1 rear. I have run the SC0 and they are amazing but utterly shagged after 8 laps.
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post #12 of 30 Old 08-19-2016, 07:08 AM
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SC2 front, SC1 rear. I have run the SC0 and they are amazing but utterly shagged after 8 laps.
Ah I see. I was confused because you said medium front and soft rear. To me the SC0 is soft, SC1 is medium, and SC2 is hard....granted that's all screwed up now with the recent addition of the SC3 lol

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post #13 of 30 Old 08-19-2016, 08:32 AM
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Quote:
Originally Posted by PainfullySlo View Post
SC2 front, SC1 rear. I have run the SC0 and they are amazing but utterly shagged after 8 laps.
I think you have a problem if the zero is only lasting 8 laps. I have been able to get many sprints out of one. Just needs to be hot enough.
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post #14 of 30 Old 08-19-2016, 03:33 PM
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I think you have a problem if the zero is only lasting 8 laps. I have been able to get many sprints out of one. Just needs to be hot enough.
I feel a noticeable drop of in grip after about the 8-10 lap mark. There is plenty of tire left, just not as sticky for me.
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post #15 of 30 Old 08-19-2016, 10:20 PM
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I feel a noticeable drop of in grip after about the 8-10 lap mark. There is plenty of tire left, just not as sticky for me.
Is that an effect of "heat cycles"? Or what is it. I've known slick tires lose their best grip since I was a kid and saw NASCAR pit crews and F1 ... But don't really know why.

I've seen so much conflicting info on heat cycles idk what to believe anymore. Lol
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