im pretty sure that the biggest kit they do for a speedfight 100 is a 120cc malossi do one for sure as i have got one on the shelf in my workshop,look on the web at ve-uk they have a big list of goodies ,just a pointer the size of the bore is not as important as the bores porting! a malossi 100 cc kit will have much better porting and therefore be faster and the standard barrels,and also the standards can only be rebored up to 1mm oversize which is of no use to you for a speed increase.
http://www.ve-supermarket.co.uk/catalogue.php?search_group=182&search_lists=3&search_make=82&search_model=899
adam bike doctor, January 2012
