I just bought a set to replace the original gt501s on my 2008. I have a 50 mile each way commute (probably 5k miles total this year, maybe more) so I will be able to report back on how they are holding up. My decision was between these and the bt45s and everything that I read lead me to the conclusion that radial should be a better tire choice. I do have a track day planned as well.
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