Keep us all posted, as I think they are still B.O. in the U.S. I have to place an order tomorrow and that's on my list of questions. Keep us posted on what Beta USA says. Since this is a really big deal for the 100's of Beta 4 strokes roaming the trails in the USA. A lot of people are kinda nervous about exploding plastic gears in their bikes, I know I am. I'm ready to place an order for them ASAP as I'm at 90 hours.