Question and guidance needed - Chicagoland Sportbikes
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post #1 of 6 (permalink) Old 06-09-2007, 05:50 PM Thread Starter

 
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Join Date: Aug 2006
Location: Pewaukee, Wi
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Location: Pewaukee, Wi
Sportbike: Track: 08 GSXR 1000; 08 GSXR 1000; 2005 R6 Dirt: 08 CRF 250 06 KLX 110
Years Riding: 15 years
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Question and guidance needed

I'm fairly new to the track (about 12 track days) and just recently sold my F4i trackbike and bought a GSXR 1000 set up for the track.

So when I bought the gixxer it had a tires on it that had 2 trackdays on it and after my 1 1/2 days on it the right side is starting to get a little shagged. I got new tires for it and when I was looking at the rear thats on there now I saw that it was a 180/55/17. I thought that that 1000's were supposed to have 190's on them. The new tires I bought are Pilot Powers 190/50/17.

So here are my questions...

1. Why is there a 180 on the back of the bike? what would be the benefit for having a 180 on a 1000 for the track?

2. Is it ok to put a 190/50/17 on it for the track?

3. What is the difference between the middle number being a 50 or 55?

The last question I have pertains to a particular track. I bought the Pilot Powers because I figured that they would hold up better for Putnam being a DOT tire. My thought process was...Putnam is a pretty sticky track as it is and if I buy a little harder tire it will offset the hardcore wear that Putnam inflicts on tires. Is this a totally warped way of thinking about this?

To give you the reference point for tires.....I have tire warmers and run a moderate to fast intermediate pace. I get off the bike well and am working on leaning the bike further over in the corners in order to carry more speed in the corners.

I want to thank everyone in advance for all their help...I basically don't know shit about tires and appreciate the help.

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Last edited by Brian#803; 06-09-2007 at 06:00 PM.
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post #2 of 6 (permalink) Old 06-09-2007, 09:22 PM
 
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The 180 will be easier to turn in with. Supposedly. I ran a 180 on my liter bike and noticed little or no difference.

The larger tire is said to have greater stability at high speeds, so I always ran a 190. I noticed that the AMA guys had some really wide looking rears, and I wanted to look up what they run. My guess is they are running 190s too (on the superbikes anyway)
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post #3 of 6 (permalink) Old 06-09-2007, 09:53 PM
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THe PPowers will be good at Putnam.


The rest of the answer is on the NESBA BBS ..........

http://www.nesba.com/TrackTalk/bb/Fo...ML/003582.html


Tom

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post #4 of 6 (permalink) Old 06-10-2007, 01:46 PM
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190 when you start to use the power of the 1000 it's a different line and ricing style then a 600 less corner speed stand it up and fire it out of the corner thats when you need the meat of the 190.

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post #5 of 6 (permalink) Old 06-10-2007, 06:29 PM
 
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Quote:
Originally Posted by BLARNEY View Post
THe PPowers will be good at Putnam.


The rest of the answer is on the NESBA BBS ..........

http://www.nesba.com/TrackTalk/bb/Fo...ML/003582.html


Tom
lol ..you are linking him back to his own thread??
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post #6 of 6 (permalink) Old 06-10-2007, 08:24 PM Thread Starter

 
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Join Date: Aug 2006
Location: Pewaukee, Wi
Posts: 908
Location: Pewaukee, Wi
Sportbike: Track: 08 GSXR 1000; 08 GSXR 1000; 2005 R6 Dirt: 08 CRF 250 06 KLX 110
Years Riding: 15 years
How you found us: NESBA
           
Quote:
Originally Posted by BLARNEY View Post
THe PPowers will be good at Putnam.


The rest of the answer is on the NESBA BBS ..........

http://www.nesba.com/TrackTalk/bb/Fo...ML/003582.html


Tom
Thanks Tom...I put it on the two boards because I thought I could get a cross section of different answers.

I appreciate you responding though...your opinion is definetly a valued one.

WWW.TRACKDAYSTORE.COM The only online store where you earn free track time when you make a purchase
WWW.NESBA.COM
Nesba Midwest CR #803
Hix Racing #803
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