I have a HitchRider DoubleDecker for my USX and my wife's Wizwheelz.
The USX fits perfectly on the bottom and the Wizwheelz on top. Here
is the link to the website:

http://www.hitchrider.com/2-trike-rack.htm

--- In ez3usx@yahoogroups.com, "Andy Schlosser"
<andrew.schlosser@...> wrote:
>
> Instead of going to bed, I was motivated to quickly draw up my
design idea
> in Sketchup. It's a 3D model.
> My concerns are (and should be common to Draftmaster in general)
>
> - what prevents the rack from swaying side to side about the
hitch?
> - some kind of tie-in to the roof rack?
> - some kind of angle reinforcement between the hitch insert and
the
> vertical tube on the rack
> - draftmaster includes another long vertical support
> - vertical gusset plate?
> - how to vertically support the red BikeE?
>
> John- how does the clamp on your rack work? Turn the T-bar and
screws into a
> threaded insert? Spring loaded?
>
> I'd love to explore these concepts a little more if anyone else is
> interested, I will be on BentRider Online too. I'm tired of
stuffing the USX
> inside the car all the time and digging out the trailer is not
trivial for
> daily use. Major PITAs.
>
> Andrew
>
>
> On Wed, Mar 19, 2008 at 11:05 PM, Andy Schlosser
<andrew.schlosser@...>
> wrote:
>
> > From looking at the pics, piecing together the rear and side
views, I can
> > only see one point of contact between the hitch rack and the bike
frame,
> > right beneath the bike pivot bolt area. With only one point of
contact,
> > don't the bikes sway in the wind causing the rear wheels to hit
the bumper?
> > How does it ride with only one trike on it?
> >
> > I like the hand crank lowering the rack, eliminating the need to
pick up
> > the entire weight of the bike. I'm able to pick the weight up, so
this can
> > be a big design reduction for me. My initial thoughts for the
rack tend
> > towards using this loading scheme with the rear wheels still at
the bottom
> > http://www.members.shaw.ca/gmerkley/bent/Rack.htm, but with this
kind of
> > rack frame http://www.cabinwood.net/DraftmasterRack/
> >
> > John, you've obviously chosen a completely different approach
that uses a
> > lot less metal, so I'm interested in exploring your design more.
> >
> > Andrew
> >
> > On Wed, Mar 19, 2008 at 8:47 AM, John Fritsche
<john_fritsche@...>
> > wrote:
> >
> > > Good Morning, Andy:
> > > Check out my Webshots Site by going to the Album, EZ
Accessories.
> > > http://community.webshots.com/user/jake1944?vhost=community
> > > I had this made to carry two USX Trikes. It will also carry the
SX or
> > > AX as well as the EZ 1 series.
> > > Just roll your trike to the hitch, rise it vertically, alaign,
clamp
> > > and turn the handle to raise the whole affair.
> > > I used it on my trip to Florida. Worked great.
> > > John
> > >
> > > --- In ez3usx@yahoogroups.com <ez3usx%40yahoogroups.com>, "Andy
> > > Schlosser" <andrew.schlosser@>
> > > wrote:
> > >
> > > >
> > > > Someone in this group has made a hitch rack for 2 trikes-
where are
> > > those
> > > > pesky pictures? I think it was modeled roughly like a
Draftmaster,
> > > with the
> > > > rear axle closer to the ground. I've looked through my email
and
> > > searched on
> > > > photobucket, but I can't find your pictures anymore.
> > > >
> > > > Andrew
> > > >
> > >
> > >
> > >
> >
> >
>