hey guys i was wondering if you could help me out i was changing my tires and my valve stem broke. i was told its japanese valve stem its real small at the part that drops in. it drops in from the top and bolts up from the bottom and i cant find one any were does any one know what im taking about or no were i can get one looks like this http://zartronix.com/store/images/ave/valve.jpg
thanks dustin