Overboring

Hi,

I was wondering that are there any overboring kits for an old (89) cbr? Or does anyone know that could the engine be overbored with later cbr pistons, for example next model which has pistons 2mm larger in diameter, do other dimensions (heigth of pistons, etc...) match?


Don't mind my bad/rude english, not my native language.

engine can be safely bored out to 700cc's.

They do have kits but they are rare and hard to come by better off just having one custom. Try sticking in the mid 600 for the best results.