Spotted this Spacecycle for sale

Without deep pockets as kids, what ever bike I got was nice. But a stick shift gear changer and banana seat had us rolling. Then came the siren rub on tire with chain pull activation. For cheap though didn't every one, have not a thought to save baseball cards to sell on Ebay, instead took cloths pins from the line and had motorcycle sound emanating from the chatter of baseball cards and the spokes!

I have seen this model before and thought that no bike in history has ever screamed out for a motor install more than this one.