I have some bad vibrations lately over 50mph. They are not speed sensitive (like unbalanced tire) and I've notice by brake pedal pulsing.
Can these be related and if so should I cut thr rotor or change, and if change what brand?

Also I'm going to have wheels rebalanced, can the weights be put on the inside of rim so I can fut my trim rings back on.

What else should I look for?

Thanks for the advise,
Michael

 

Find out what rpm it is most pronounced, then run it in different gears to see if it is rpm or speed related.
Speed is most likely tires, rpm is most likey engine.

 

Unfortunately I dont have a tach, but I dont have any vibrations below 50mph.

Could it be bent rims?

 

My vote's for a bad or unbalanced tire. Could also be a bent rim, they'll tell you when they rebalance the tires. They can't put all the weights on the inside, they shouldn't interfere with your trim rings, though.