Hiro Piston

[fosterboy]

After talking with Kjell Bomen about the Hiro Piston he told me that he had seen a thread about using a Zundapp 125 piston as a possible substitute for a Hiro piston either on the POG or VInduro groups could anyone confirm this? Also has anyone tried the pistons produced in Italy by Pistoni Gol with any success? Any information would be great [email protected] Thanks Ed

72 Monark - project    
76 Hercules 175 - project
possible Penton-Hiro project