Cross Tyres

Hello!

I want to buy a set of cross tyres for my 2003 Vespa PX200.

I see on the site that all the cross tyres exept the "Duro HF204 Cross" don't fit to my Vespa!

Is it true?

The other tyres like the "MICHELIN STARCROSS MS2" cannot be fited to my Vespa (or i have to modify my PX so it can be mounted)?

Thanks!

do yo want to do like this crazy  greek peaple 

http://www.youtube.com/watch?v=G8el8MtyzpA&feature=related