Originally Posted by
BlarneyStoner
My idea was this (and you guys tell me if this is even feasible): to buy a mountain bike and then get a narrower rim and some road tires and swap the two, when necessary, for a "jack of all trades" (master of none) kind of bike.
What kind of brakes? Everything on a bike works together. If your bike has rim brakes, switching to narrower rims will make it necessary to readjust your brakes every time that you switch wheels. I'd recommend getting identical hubs too or you might get sloppy shifting with one or the other wheelset.
Frankly, if your objective is to ride with the lady, I'd get a bike that's similar to hers. The more similar the bikes are the more fun it is to ride together.