I've heard everything on this from putting the tyre through several heat cycles to taking it very easy for 100mi. My personal way (learned from an old road racer) is to rub the tyre with a shop rag that has been lightly wetted with brake cleaner. Mind , you don't spray the cleaner on the tyre, you spray the rag and wipe off the tyre.You will see the stuff coming off and you can also see the sheen taken off the tyre. I've been doing this for 14 yrs with no ill effects. It dosen't break down the rubber or cause dry rot. You still take it slightly easy but the slippery surface is less so for your first run.