I migrated my wife to a mountain bike along with me. I put slicks on my mountain bike and eventually ditched it for a hybrid, and just ditched that for a road bike. I was telling her I would put road tires on her mountain bike and she took out her road bike. The road bike has less control, so she is safer on the mountain bike. But I think she would like my hybrid a lot. It has bigger wheels and rolls faster. Maybe she can rent one of each and test ride them before plunking down the big bucks.