hi im a new user here,
i know nothing about bikes, and woul like some information and opinions on cbr250, nsr150 or cbr125? whats the strokes? ive heard the 2 stroke nsr150 is quicker than cbr250 but have no idea how it works and so forth..
also i weigh 90kgs+, would the small 150 and 125 struggle?

Yes i have read a few previous pages and found nothing relevant, and theres too many pages to flick through to and from page 1.

If someone could give me some background knowledge and help me decide it would be appreciated.

Cheers