I got mine through Ebay,but GoKarts USA is the supplier. They were extremely helpful,as was TacoJoe. They shipped it to me fast,and called me yesterday to tell me when I would get it after I asked about it. So if anyone out there has any lingering doubts about these frames,yes,they are pricey,but the customer service I received was excellent. I have a 5.5 Carroll Stream waiting for it,but it might not fit!!! We'll see what transpires......