Working on a luggage rack for the TW. I know I can buy one, but have access to tools (CAD station and CNC's) to make one that would be more individualized and unique. Looked at some out there of similar nature, took it from there. Might incorporate some lower struts for strength similar to the "cycleracks" design to increase capacity, but for now the design is a stand alone bolt on (3 bolts) unit. It's a work in progress on the computer right now, in the thought process. Photo on blue bike is one I liked, other is my design. 1/2" thick aluminum should work fine.