Well, you guys got me to thinking so I looked up some units online. I like the VDO line so I see the 4.1 has a 2 bike function. And, no dealer in Canada as MEC has stopped carrying the product line. I've put an email into the maker so if they will ship, I will buy

An elegant solution.

Also, interesting about the bearing. I cut that stem pretty even and it rotates smoothly so I think it will work out but another thing to think about when doing this.