I picked up a small nail in a pretty new rear tire a couple of years ago. I have the tire warranty on my ESP so my dealer told me to bring it in if it is holding air, if not he would pick it up.

Changed the tire and I had to ride home on wet roads from an earlier rain. The service writer STRESSED for me to be easy on it on the way home and scrub the tire in to clean it off. No issues.

Two days later, my wife and I left for a four day mountain trip on a tire with at most 50 miles on it riding two up and with luggage. We hit heavy rain about 150 miles into the trip and rode thru that for about an hour.
Rode the next three days thru the East Tennessee mountains with a pass thru deals gap. Lots of twisty damp roads that week. It rained on us several times, one time a very hard rain.

I never felt the first slip. I did ride as easy as I could with my wife aboard but you have to lean hard in some of those mountain turns. I never thought about anything except 'I'm glad I have fresh rubber under me.'

My experience, after 150 miles you are good to go.

 

Newer tires need no break in process. They don't use that greasy release agent anymore. Install and ride.

 

I have always used around 150 miles as break in (go easy) on my 2 wheeler tires. This was as much for the scrub off as for me to get the feel of the new tires. My old ones were usually "more flat" in the middle and I had gotten used to that handling over time. The new, rounded contour of the tread did handle differently.
I also liked to find a concrete back road where I could start doing some gentle swerving from side to side to widen out the "scrub patch". Seemed to me the concrete would speed up the process a little bit over blacktop. To each his own!

 

I think the "Break-in" period is more about getting use to the new tire rather than getting any film off it....

 

What about the "darkside" riders?

What kind of break-in is needed for those riders?

And...does it make a difference?

 

Amazing how the handling can change with a different tire contour. Wait until you change only 1 tire...

 

my salesperson told me the 500 mile break-in.

 

OP since you're in a learning mode brake pads need a proper breakin also.

Life is so complicated.

A new girl friend needs no break in time at all. Go for it.

 

Mold release compounds can be slippery and take some time to wear off if they are used.

 

..And if there's any "release agent" on her it's likely stickier than what's on the tires.