when will anyone stock stage 6 streetrace piston kits?

just wondering if anyone knows where i can find a stage 6 streerace piston kit for a piaggio nrg power... i've looked everywhere i can think of and there either not on the website or sold out.. if anyone knows where i could get one, or when or if anywhere will re-stock, or even if you have a second hand one for sale i could buy....any help is much appreciated
thanks, tommo

 

wouldn't any streetrace piston would fit?

http://www.pedparts.co.uk/product/561/stage6-streetrace-70cc-piston-kit-minarelli-aerox

ring up and ask :>