...aftermarket 22" wheels? I own a porsche cayenne S with 22" aftermarket wheels when i get to around 80 kms the steering wheel starts to shake, im wondering what the problem could be? i have spacers on the 2 front wheels.
Pete is right. Go get a SPIN balance - not a static balance. Sometimes a weight will fall off right out the tire shop door because the lead weight cracked when crimped onto the rim of the wheel. In any case, the spin balance is the cheapest and most likely solution before anything else.