If your thinking of making a cheep quad that will win races then read on.
I had a complete CR500 dirt bike,took out the swing arm and fitted a quad rear end.
removed the complete front fork assembly ,yokes etc...welded on a Tri z conversion quad front end straight onto the bike frame and hay presto !! Had to bodge up some Banshee rear plastics to make some rear fenders..The result is a very fast quad..no vibration and minimum hassle in making..sounds pritty mad but works a treat...

 

i bet!! i build one out of a 92 banshee it was the fastest quad around here but it vibrated very bad due to home made motor mounts. i've never rode anything faster!!!!

 

how would that motor run in a banshee for drag racing? anyone have the stock hp on a cr500?

 

Where do I get a Tri-z conversion in the states? Searched on the net nothing comes up, also what quad rear did you put on I've already got the cr500 your way sounds like a better way to go.

 

ASTRO used to build those conversion kits for 3 into 4 wheelers they were pretty cheezy though so if you do find a kit be carefull about buying one check it out real good...

 

Stock HP of a CR500 is about 55 at the rear wheel, so i've heard. It's a handfull!

 

If you have got and pictures of the CR500 quad i would love to have a look.

I have got a converted tri-z Trike, have a look click here