Well like i said Right tire shakes at violently at 50 mph,does any one have any idea what this can be its not the rim or tire or balancing i heard it might be the thrust arm but which one exactly upper or lower iactually see it shake at exactly 50i joined this forum so i can get the upperhand when i take it to a mechanic a friend recommemed this site so far i love it any help would be appriciated thanks.and thanks for having me.