Viberation at 55
did the nvh app it said 1st order tire speed related viberation
had tire rebalance with road force balance done 1new tires
I have 2sets of different tires on it

 

Vibrations are pretty hard to diag via the internet.
Tire vibration issues usually get worse the higher the speed. Could be a rim bent. I assume when you say you have two different sets of tires you mean that the tires installed at this time are two different brands.

 

Yes I have pathfinder on front coninnetal on back front rotor never change out 198000 miles

 

Unless vehicle shakes when braking I wouldn't worry about the rotors. If you mentioned the vibration when you had the tires balanced the shop should have watched the tread to see if there was anything wrong with the tires. Where in the vehicle do you feel the shaking, steering wheel, seat, other. Jack up the vehicle and check the front suspension components for any play. Have you gotten an alignment in the recent past?

 

The front and in backseat you can feel it bad at 50 to 60 mph rotors where never change I am 4th owner no ailgnment was done as far as I can see on carfax. No noise from brakes as far as I can hear