well..... I don't love 29ers. Caveat, I don't own one, have never ridden one, but I teach mountain biking and see a lot of gals on them. My observation is that if you are on non technical trails they are probably fine, but for anything technical they appear to be unwieldy and less than responsive. 100% of the gals that have gone through our organization's skills program ( based on ICP and PMBI) replace their 29ers within the same season. Just my observation here. Non one has issues with 27.5 - if anything that is the wheel size to go for.