i want to see some hybrids.

[jmax857]

so i have been looking for a while for pictures of older dirtbike built into trikes. there are alot of newer crf's made into them, but no early 90's cr's or yz's or anything. basically why i am asking is because i have pondered the thought that a 1990ísh yz250 would be perfect to "mate" with a tri-z 250. you could implemement the front inverted forks, the motor could bolt right in, it would use the top mounted gas tank, use the tri-z swingarm and rear end. bam there you go. i would consider doing this myself, but its always nice to see if someone has done it first.
and basically i want to see some hybrids, so lets all do me a favour an post me some pics!!!!!
thanks!

[93cr250]

if im not mistaken ive heard that when you put dirt bike motors in atvs or atcs they vibrate like crazy because there is no counter balencer on a dirt bike, the vibration is not that bad on a atc because it has forks but its still pretty bad, is this correct?