RE: Where to find 7/8
the sig 1/5 scale cub uses a 7/8 inch wing tube. I know because I got one from them for my cub. Go to the Sig website and click on the 1/5 scale cub parts list and you should find it. You get the tube and the aluminum pipe. The site is kind of hard to figure out when it comes to parts, but if you type in "wing tube" I think you might find it. Good luck