Originally Posted by pista_chica
if she doesn't ride very often then you should start her off with something a little less strenous, keep it fun for her. i'm 5'-1.5" & 98 lbs and i run a 46x18 on my converted ss road bike. it might be a little too easy for me, but it's nice to be able to cruise. let her feel relaxed on the bike, she'll be able to enjoy it more. gosh, you're like a whole foot taller than her...
hahah yeah and almost twice her weight. I have the other cogs from the cassette I can use. I'm sure there's one closer to 20 in there. 2 to 1 ration just sounds nicer too. Thanks for your help.