[gthompson97]

Either the tire(s) are out of balance or those spacers are not correctly balanced. Get an alignment and get the tires balanced and it should cure all the problems, otherwise you either fucked up something bad when you hit the curb or the spacers are not in balance. But I'm thinking it's the tires out of balance, get an alignment too though, you're probably wearing the shit out of those tires without an alignment, especially after hitting a curb.