I've been using a variation of the dynabeads here in the USA. Work great. no issues. Only thing is not to have a low profile tire. The beads need room to spin about. when the tires are cold, you may feel a little out of balance. Let them warm up and adjust your speed. it will self correct. Also, you may need to add/subtract bead weight for your application. Another neat fact. If you change out tires, you simply bag the beads and reuse in the new tire!
