Bike-in-a-Kit Concept Has anyone in the group has tried building a "Bike-in-a-Kit"- a sort of DIY bicycle, which can be entirely assembled and disassembled by the user and can be conveniently carried in a bag ?
I face such problem when I've to take my kid for cycling and have to carry his entire bike in my car. Its tedious and cumbersome and I'm not very fond of those bicycle stands/racks that can be put on cars.
Suggestions/Answers are welcome.
Yes they have travel bicycles that can be broken down

They typically use S&amp;S couplers
But compared to the time to break and assemble a rack is less tedious.  

You also have folding bicycles
But the don't perform as well a regular bicycle

A break down bicycle is going to have better performance but takes longer for break down and assemble   

Break down and folding bicycles are more expensive  

On a regular frame you are not going to get much benefit from a full disassemble compared to just removing the wheels.  Beyond that lower the seat and maybe spin the bars 90 degrees or remove it.  A full disassemble and  assemble is hours of work and something I would want to do in a shop with a full set of tools.