Got a pack of tire beads  (value pack) to help the tires last longer .    I'm sure its OK for the Sportster  but ...  is it safe for tube  tires ?    

Autobalancing? supposed to make a smoother ride without using wheel weights....

Warn a tire shop if you have goo or beads in a tire...

You can use the beads in a tube....here is the quote from the DYNA beads website.  I wouldn't worry about the oil in the tube problem....if you are filling your tire from a compressor that has a oil/water separator on the line....or is not one that you have experienced water or oil coming out the fill hose.  If you have a compressor that tends to have water or oil in the hose.....don't use that compressor on the tire.

"As a precaution, we strongly suggest a new tube with a new Dyna Beads application to avoid the problems of compressor oil accumulating on the inside over time. It turns gummy and the beads will stick to it."

The same can also be said about a tubeless tire...use a weepy air hose and the beads will get sticky.  The only difference with a tube is that it might be used for more than one tire and accumulate moisture/oil over several air changes.