I'd say its a bit big for your weight, but some gals like them big
. Last week met a shredder gal that had been riding 15+ years that had a 159 billygoat and loves it...she was about your size but may be 140 lbs and know of another woman that's 50 yrs old with at least 20 years riding that is riding a billy. My daughter is 5'4" and 125 and rides a 155 cambered for deep pow. So ride what you like.