Yo derbi dudes.
I have a Derbi piston port bottom end up for sale. Just scored a flat reed motor, so this one can and has to go. It's just missing a top end. Bearings are smooth, and I have no reason to suspect anything is wrong with it. I have not run it, but it's in nice shape, so buy it!!!! It is missing the variator side cover.
$75 plus actual shipping. to your door.