Anybody knows what could be the problem? When I drive like over 50m/hr then it starts feeling a slight vibration/noise. tire pressure is by the book, tires are in good condition. any advise?

 

Get the tires rebalanced. Make sure they use a road force balancing machine as well, TL's are picky when it comes to being balanced correctly.

 

Just to clear up the terminology, it's a Hunter Road Force balancer you'll be looking to use:
http://www.gsp9700.com/pub/search/findgsp9700.cfm

 

get tires rebalance, you car realigned....

i was slammed and riding without alignment....when my tires got messed up, i got camber kits, new tires, balancing, alignment.....my tires are lasting longer and no vibrations in the drive....

now if ur car is shaking at a stop as well, check ur engine mounts !!!

 

Tires have been balanced, correct pressure, all done by Radley in VA. It still doing it. Is it anything else I can try?

 

1> did he static rebalance them ? if yes get em done again !!!
2> Did you get your aligned ?

 

Radley shows they gave a Hunter Road Force machine, so were they balamced on this machine? If it were a bent wheel, they certainly would have seen it when balancing, sama as irregular tire wear.