just run a mugen 12T bell it should work fine- just dont go too big. you have to think about rubbing on the body. i put the bigger tires on mine and the body rubbed when you turn. so i used the PANTHER LP'S (low profile) they are still bigger but dont rub and dont put as much stress on the motor.you can get wheels in dish cheap as well. the maximizer adapters worked fine on mine they are top of the line and cheap. goodsgood on ebay has some alumnium arms as well. i didnt break any plastic arms on mine.