It is the fastest semi slick tyre among Zeknova series, good for circuit recing, super lap battle, slaslom, gymkhana, road recing, autocross, time attack, hill climb, tarmac rally, trackday and other track racings. It is street legal, so also good for daily car drivinf purpose. RS606 pattern is designed for both professional racers and track-day enthusiasts, it coul help perform better, drive safer, quicker and farther. The RS606 features premium technology to offer more grip for unprecedented performance both on track and on road. The rib design on the tread could help guarantee its performance stability even under high speed driving. Reinforced sidewall provides excellent controlling and cornering ability.