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Old 05-01-2010, 03:05 PM   #1
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Default Dunlop Direzza Z1 star spec

Anybody try these new tires yet?
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Old 05-01-2010, 03:55 PM   #2
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I have them on my car and they are win. I am only running the 195/55/15 and I did pretty decent in sts on them. Plus there is very little spin in first gear, not to mention they corner well. They wear pretty decent on the street too, and have better grip than the rt 615's i had before them.
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Old 05-01-2010, 04:41 PM   #3
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tire is not new, it has been out for a while do some searches.

they are good. new sizes came out in the last month or so.

Same category as the RE11 and the Kumho XS. Pick your posion, as the XS is the lowest priced of the bunch and has come out a few tenths faster on some dry grip test.

I just picked up some re11s with a 100 off as they were still in the $90 price range when I bought them (they are back to 120 now). I would go with the XS now

Last edited by Pitlab77; 05-01-2010 at 04:55 PM.
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Old 05-01-2010, 04:43 PM   #4
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Quote:
Originally Posted by Pitlab77 View Post
tire is not new, it has been out for a while do some searches.

they are good. new sizes came out in the last month or so.

Same category as the RE11 and the Kumho XS. Pick your posion, as the XS is the lowest priced of the bunch and has come out a few tenths faster on some dry grop test.

I just picked up some re11s with a 100 off as they were still in the $90 price range when I bought them (they are back to 120 now)
Shows how long i have been outta the loop. If the kumhos are cheaper/faster get them. I have had the dunlops on for 25k.
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Old 05-01-2010, 10:43 PM   #5
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been running that tire in 205 size on my DD NB for awhile now, sticks like glue for a street tire!
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Old 05-03-2010, 01:57 PM   #6
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While the XS is slightly faster, the Starspec are much better in the wet compared to the XS
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Old 05-03-2010, 04:08 PM   #7
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They are a great street tire and they can serve rain back up duty at the track. I bought them because of how well they have done in comparison tests. And they're not stupid $.
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Old 05-04-2010, 11:54 PM   #8
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The Star Spec is a great overall tire. The XS might be a hair faster but is alot more expensive. Star Spec have great tire life and are fantastic in the rain and unless you a top level driver, they won't be any slower then a XS. Can't go wrong.
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Old 05-19-2010, 11:02 PM   #9
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I have them on my S2000. Excellent tire, but wears quickly. I got about 11k miles out of the first rear set. Since S2ks have a staggered setup, you cannot rotate front to rear, and the rears wear about 50% faster than the fronts. I suspect that many more miles could be had on a square setup on a Miata.

I'll be putting them on my OEM Miata rims for street duty and to serve as heavy rain tires for the track.
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Old 05-20-2010, 08:47 PM   #10
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Quote:
Originally Posted by srproductions View Post
The Star Spec is a great overall tire. The XS might be a hair faster but is alot more expensive. Star Spec have great tire life and are fantastic in the rain and unless you a top level driver, they won't be any slower then a XS. Can't go wrong.
XS is actually the least expensive of the 3.

RE11 is 122
*speck 116 (IIRC)
XS 9x?
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Old 09-16-2010, 05:24 PM   #11
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Kumho ASX are 68 420 AA A
Kumho XS are 88 180AA A
Star Specs are 107 200 A A

Im still kinda confused by tire ratings. double checking, number is wear (the higher, the longer they last) and the first letter option AA implies more grip than A correct?

so shouldnt these ASX be pretty good? grippy and good wear resistance?
or are the ASX going to still feel like all season rocks regardless since they are so wear-resistant?

Last edited by rigidbigelsworth; 09-16-2010 at 05:35 PM.
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Old 09-19-2010, 09:31 AM   #12
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Tire ratings are not comparable between different manufacturers. For example, the 200 A A rated Dunlop Star Specs may have better grip and wear faster than the 180 AA A rated Kumho XS.
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Old 09-19-2010, 11:35 AM   #13
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And to answer the question about the ASX, It sucks. A noisy brick.
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Old 09-19-2010, 11:51 AM   #14
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Quote:
Originally Posted by rigidbigelsworth View Post
Kumho ASX are 68 420 AA A
Kumho XS are 88 180AA A
Star Specs are 107 200 A A

Im still kinda confused by tire ratings. double checking, number is wear (the higher, the longer they last) and the first letter option AA implies more grip than A correct?

so shouldnt these ASX be pretty good? grippy and good wear resistance?
or are the ASX going to still feel like all season rocks regardless since they are so wear-resistant?
The traction rating is based off of a wet stop IIRC. Not a good indicator of stickiness.
And, as CoralDoc said, you can't compare wear ratings from different manufacturers.
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Old 09-19-2010, 03:40 PM   #15
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gotcha. thanks for the clarification everyone
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Old 09-23-2010, 11:44 AM   #16
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Thanks for the input... kumho xs for me....
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Old 09-23-2010, 01:15 PM   #17
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I'm going from Kumho's to Star Specs this month I think, just got to orfer them...
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Old 09-23-2010, 04:15 PM   #18
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jbrown: let me know what you think after the swap/which you would reccomend
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Old 09-23-2010, 09:57 PM   #19
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can't comment on the XS, but I am faithful in Star Specs, and for 14's, there's really no better option for dual purpose.
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Old 09-26-2010, 01:51 AM   #20
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Really, let me know to. I have been running the dunlops for the past couple years and i hear the kumho's do better in the dry.
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