so, after getting some aftermarket wheels (not really by choice, stock rim has a crack ) i get a little bit of shimmy at certain speeds.

im not quite sure if this is just the suspension (mine is getting "old", w/ an '06 car and 78k miles) or if the tires are not quite balanced (they are brand new Michellins) or if its due to the possibly "cheap" hub rings, being that they are "universal" (got the rims at the tire place, "Drag" brand), or if this is all "normal" to minis due to the fact that the wheels use a floating hub.

so, would a stud conversion fix or alleviate this shimmy?
any other suggestions, other than having the tires checked again?

thanks in advance!

 

I'd try to get machined hubcentric rings. The weight of the car is meant to ride on the hub lip and the complementary inner surface of the wheel.

Take the car back to the tire store and have them experience the shimmy, and recheck the balance of the wheels.

When tires are installed on rims, they use a lubricant to help slide the bead onto the rim. This lubricant can take a day or two to 'dry out.' In the meantime, any hard driving or spinning of the tires can cause the rim to rotate within the tire, throwing off the balance of the assembly. In fact, even months later when the tire is fully seated, hard wheel spin can rotate the rim within the tire, depending on the tire's grip and engine's power.