ive always heard 1cc per pound of rider, for beginners.
my buddy recently got a pair of honda 230's and his wife is 5'7" and its a little more than shes comfortable with. even though shes riden befor, i suggested lowering the rear suspension so she would get more control when riding slow so she woulndnt keep beating her shins up
Justina and her Mom both ride where are you Justina?? Beth??