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These tires are $397 a set... My one-day-old tires are $125.
I'm slow, and I put 2 practices, 2 sprints on each set... When I keep them on, I can run 8 races at sub 1:20 laps, so there is still plenty of life left after 2 races....
Somebody is buying the set from the next race day (9/27) and I will have one set (9/28) for anybody who wants stickies for the LAPS event. They fit perfectly on a 5.5" (600cc) rear.
I have used a few brands/models - these are closest in performance to the dunlop british 209/211 Ntech's that are $420 a set.