I didn't think this question deserved to be kept in my first build post. I am looking at getting a Grubee Aluminum frame but I went through Bicycle-Engine`s website and looked at their photo showing how to spot a knock off from the real deal. Says the real Grubee has a small plastic fuel cap not a large metal one and that it has disc brake caliper mounts. Well I was going to buy this frame from Bicycle-Engines website but with shipping it put it at over $205. I did some searching and found other places that have the frame by the name Skyhawk GT2-A which is what it says on Grubee`s website and they are offering a lower price with free shipping. So my question is whats the difference between the Grubee`s GTA found here. http://www.bicycle-engines.com/Grubee-Aluminum-Motorized-Bicycle-Frame-GTA.html against the so called Skyhawk GT2-A found here https://www.kingsmotorbikes.com/col...sc-brake-caliper-brackets?variant=12699467908 I found it cheaper at some other places using the same photos that shows the disc brake caliper mounts are not welded in as shown in the photo for the one from Bicycle-Engines. Are these both real Grubee`s frames? I hate to spend more money than I have to if I can get it cheaper either through free shipping or a lower over all price if its the same product.