I think the people who are being critical are missing some key points.

First, she is obviously used to the training regimens of an endurance athlete.

You: "Honey, I'm doing a 5 1/2 hour bike ride today"
Her: "What, only 5 1/2? Tomorrow is your long ride?"

Second, think of the potential "pillow talk":
"Are you sure your brother won't mind if I use his carbon soloist?"
"Yes. He has many bikes. More than he needs. Take that p3C thing with the funny handlebars as well."