Hey guys. well i just changed my rear tires and got some hankooks adventus.. their pretty decent tires not 2 bad..now the front tires i have i left them .. the same potenzas.. but i should be changing those soon 2. Now the problem that i have is .. on the freeway.. my car tends to wobble sometimes .. my rear or maybe i guess its my front tends to move around a little to much. i dont really know what it is.. i need some help figuring it out.. now is it cause my front tires are different from my rear?.. is it my alignement?.. is it the balancing on the new tires in the back?

 

are the side walls of those hankooks soft?

 

are they directional? usually directional like to follow the grooves in the road

 

My bimmer had the same problem b/c the fronts and rears were different. I believe that it's because even though they were both the same speed rating, different materials and actual thickness of the sidewalls made the car unstable and sway at higher speeds. remedy: get matching front and back tires. It's a scary feel and can be very dangerous. Good luck and drive safe.