Wait a min...there are fun rides? I don't know what it is but I can never seem to go out and just ride easy, I always kill myself on every ride to do it as fast as I can. Do you need to borrow a cassette? I have an extra shimano 12-25 and could mount it quick you if you to use it for the ride. It probably would be nice to ride together but I am not sure how my father will want to ride. We will see how it goes.