Thread: Exotek F1R
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Old 01-02-2012, 07:36 AM
  #159  
avs
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Sorry, i know that there has been a lot of shimizu tire discussion already, but...

There has been a lot of people suggesting the 571/572 front/rear combination. However, the F1R tuning notes indicate 574 or 577 for front.

The designations seem to be a F1 vs F3 compound? and soft or medium insert or sidewall. 571,573 are F1 soft/medium while 574/577 are F3 soft/medium/

So my question is how does the 571 compare to the 574 or 577? I tried the 571 and found it very sensitive to traction additive. (SXT on carpet) With full tire treatment it traction rolled all over, while 1/2 tire treatment produced severe understeer.

Does the F3 family behave like the F1 or are they less sensitive? Thanks for any insight.
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