I think the best bike for her would meet these criteria:
- - upright rider position
- - flat bar
- - 1x drivtrain (she rarely uses the front derailler, even though her current bike is a triple!)
- - tires: 30c or wider
- - no suspension needed
- - price under $600 (preferably)
- - light-ish (I'm the one who has to put the bike onto the roof rack, and I think the frame of her current bike is a steel-lead alloy...)
Thanks,
Scott