I bought one of these PWK 38mm air strykers for $70 including postage, what I received was a genuine made in Japan Keihin factory second, even in a genuine box with a card saying made in Japan, it just has some casting flaws on the body and bowl but performs like a new carb, Ill be buying more, I just noticed that my KTM500MXC has one of these carbs too as they have a Sudco sticker on them and it performs great too. Grab em while you can.