[rpeters549]

New tires have a release compound on them to help them out of the mold when manufactured. All the bike shops I have used in the past that it is gone within 100 miles. Ride gently for those 100, gradually increasing lean.
I have heard of people using different compounds to clean it off, but I would be careful with anything that might adversely afect the rubber. I would just ride it out knowing you have a bit less traction out the door.
Rich

 

[rpeters549]

I know one bike shop that told me they clean them first. I do not know if they still do.

 

[rpeters549]

In talking to the shop owner who has put three or four tires on mine over the years, he always warns even experienced people about new tires. He told me that twice he has had folks spin their machine around leaving the shop. Not sure how long ago that was, but it was good advice above to take it easy for a bit anytime something is new/changed.