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There's a nice write-up of the power race tires in RRW. They are all dual compound tires to varyining degrees. Softer on the sides, harder in the middle. I would think that on a 300+ lb bike making 100+ HP this would be a big advantage at all tracks.
The review stated that slow heat up is a thing of the past, along with unpredictable slides. Since those are really the only things preventing Michelin from being superior to Dunlop in every way, I would think these are worth checking out. I wonder if they give up some ultimate grip in favor of smoother slides?