Another thing to consider is that the race compounds are TERRIBLE in the wet because they don't have any silica in them. Something to consider if you ever ride in those conditions. I remember a Michelin Rep. talking about the differences between the street and race compound tires in a Sport Rider test. Silica and the resulting wet grip was on of them but he also talked about longevity. He said that the race tires were designed to go through one or two full heat cycles before performance signifigantly dropped off. Now, a race compound tire that is used only on the street may never hit full temperature, therefore lasting longer...but why bother at that price? Like the man said, if you need that much extra grip on the street, you shouldn't be on the street. I'm more worried about the race take-offs that everyone buys for cheap. Those have been through AT LEAST one full heat cycle on the track. You're definitely not getting the same tire they started with. Given the variables with purchasing take-offs and the fact that I have been unintentionally caught in the rain before, I would rather buy new street compound tires.
1999 Blue/White YZF-R1: 2 Bros. C4 exhaust, Dynojet jet kit, timing tricker, dyno-tuned by Graves
2000 NBM/Lt Oak int/Blk top C5 Convertible - MN6, Z51, Vortex Rammer, A&A Exhaust, C/R X-pipe, Corsa tips, !CAGS