Motor Bike Carrier

I built my first bike and was puting in the back of my truck with a cap on it. This was not to easy for me with a bad knee i have. I looked around for a carrier to buy but did not like what i saw. I decided to design my own carrier the way i thought it should be built. The pictures shows the carrier and i used my son's bike for the pictures. Take a look and tell me what you think.

I am thinking of makeing a plug in add on for a second bike. I picked up a new bike today for my second build a Electra Coaster alum. frame. I built one for my son and liked it so much a had to get one.