Can any one help me find the right pistonhead ihave been looking at SIP but i cant find

the same.

The old one is 55 x 71mm and i want to replace it with the same,thats all i know about

this pistonhead. the new one is a grand sport 55,5mm and do not fitt.

I have a PV 125cc 1967.

By [URL=http://profile.imageshack.us/user/spaxe65]spaxe65[/URL] at 2012-06-15