[newday777]

I too have my Active rear, reversed rotation, 42 psi, standard weight balance, with no vibration.

You didn't say how you balanced it or if you are using beads or?

As Chromo said, it could be out of round.
Or it could be in the rear tire, is it cupped? What is on the rear, how is it balanced, how many miles on it,?

Steering bearings need to be repacked and torqued properly too.

 

[newday777]

rear tire is 500 miles new Dun E3 and ran perfect with old front tire. steering bearings test perfect! was perfect before tire change! problem is definitely in tire! no balance or beads yet but dyna beads on the way. I post, observe, then slowly do the next............by posting in advance I allow you seniors guidance before I screw up Now before adding beads I will do the 'out of round test' and promptly get it replaced if it is defective. Chromo did you send the tire back first or run it until the new one arrived? Thank you again wise ones:bow:

Do check the tire but most likely it's just out of balance.