Yeah, That tube is a tool carrier made out of 4" PVC pipe with caps on both ends. Works pretty slick but you gotta remind yourself to check them occasionally..it would suck to lose the tools! The reason I made it was twofold. First, I have the stock honda tool kit and I added a bunch of stuff to it, so its kinda heavy, so why not keep that weight low! Second is I added the pro-moto billet rack so I lost my tool bag. My bike was loaded down with 5 days of camping equipment and was quite top heavy so once it would start to go, there was no saving it. It got old real quick trying to pick that thing up. I think I dumped it 3 times in 2 miles in those pics.