This sale should have been more clear. I can’t find way to cancel the separate order for the chassis which means I’m going to be out shipping both ways plus a restocking fee. At that point, it would probably mean I should just keep something I don’t really need that I never would have bought if the sale didn’t make it look like it’s not included. Under “In the box” it says: “(1) Kelty Ascender 22 Expandable Carry-On Luggage, 40L - 70L, Raven”. No mention of a chassis. 
Sooooooo, no answer on this?
We’ve pinged Woot Staff but haven’t received a response.
Thank you for your patience while we gather more information from the vendor.
According to Kelty Website, all Ascender 22 Expandable Carry On’s come with the cart, the others, such as the trunk or duffel bag do not.
CS emailed me back last night. It does come with the chassis and they said to refuse delivery of the one I ordered unnecessarily. Hopefully I’m able to do that since UPS tends to just dump stuff off at doors and run off as fast as possible! :0p
Ha! If they do that, feel free to email back in, I’m sure we can give you a return label.