Can someone help me what kind of alpinestars bike frame is this, and where it is manufactured? Just got it a year ago.. I've already search alpinestars website but couldn't find this exact frame.. Here is the bike's serial number JYW16047461
Alpinestars hasn't made bikes since around 1996. This is definitely not one of their 90's frames. That being said they do sponsor mountain bike teams and make clothing and gear. It is not unheard of for these companies to get lower end frames from the manufactures of the brands their teams ride and have them branded for them. My guess is that is what this frame is.