This is a true rarity. Astro Brand (see catalog pics) Conversion Kit to make the Tri Z into a 4 wheeler.

The YZ465, early YZ490 and several mid 80s YZ250 motors drop in and bolt right in with zero mods whatsoever.

There are no issues with any brackets, threads or mounts.

Includes front brakes with steel braided lines. Just attach to your existing TRI z lever. Brakes work.

Front shocks feel good and very smooth, but I would probably recommend replacing front shocks as they have a little oxidation.

Includes original Astro plastics (Maier) that bolt right on.

Build this thing up and and go beat some Fourtrax 250R's and Quadracers. be prepared to be asked lots of questions.

I included pics of this kit built up, above.

I think I can ship this with the A arms removed for about $150-180 inside the US.