The stuff you used to do

I discovered and old sketch book in the attic yesterday, i used to spend a great deal of time drawing bikes, both real ones and imaginary types. I was quite surprised how timeless some of them look.

I had no intention (or money or skills) to make them, i just did it to get them out of my head and into the world.

I scanned a small selection and here are the first few, I can't be sure when they were drawn but they are about15 years old.
The flower power engine made me smile :)

The top one displays a recurring theme that many of them have, in that they never quite got finished, part drawn wheels seems to be common.