I'm very happy with my Giant Avail. It's the woman's version of the Defy. Great entry-level bike and very affordable. I upgraded my components from Shimano Tiagra to 105 and added Mavic Aksium wheels and a Specialized Jett saddle a couple of months ago...now it's even better. I'm 5'4" and short-waisted...the small Avail fits me perfectly.
She's going the distance...
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'14 Orbea Orca Dama, Specialized Jett
'10 Giant Avail
'87 Schwinn Cimarron, Brooks B17
Trek mountain bike...don't know what year