sorry for the 2 threads in such short amount of time

but anyways I just put aftermarket rims stock 14's to 18's with adapters...now with the new rims i have just installed the car shakes pretty bad after going 50mph so i figured that i would just need the wheel balance...well i just did the balance yesturday at Dayton Andrews...and it still shakes after 50mph..I called up rent n roll to see if they know what the problem is and they say "if you have adapters, its going to shake no matter what" im thinking to myself why would they make adapters for cars if there is no solution to fixing the problem...

pursuing this further i think i need a "on wheel balance" and if so where could i get one...and if not then what do i need to do...and if rent n roll is right and i should sell my rims and get rims that fit my lug pattern

thanks