st-115 has like a 320 wear rating, which leads me to think it can't be too performance oriented.
Take note i'm talking about for outright grip, not its chuckability in drifting, which demands different characteristics.
for pure grip, the FK-452's "luxury tire" branding gets a thumbs down for me.
The MX has been compared to the RT-series, but reverse weaknesses. The RT is godly when cold, and suffers when hot. the MX is weaksauce when cold (and new), but excellent when warmed up and worn down a bit. Both are probably the best money-for-track performance tire you can get. The next level up would be BF Goodrich KD's, Bridgestone S03's...then you get the Neovas and RE-01s that are trackday specials
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