ss 200 kit

hello.
Going to get a SS200 performance cylinder, for my li125.
But there seems to be two kinds, one for a 34/35mm carb and one for a 28/30mm carb.
So what one would be the best for touring and general use?
Thanks
Alex
Going to get a SS200 performance cylinder, for my li125.
But there seems to be two kinds, one for a 34/35mm carb and one for a 28/30mm carb.
So what one would be the best for touring and general use?
Thanks
Alex