As for riding 2 up,..I'm reminded of a cartoon I saw in Easyrider magazine many years ago.

A big bellied, tattooed up biker had tied a little red wagon to the back of his bike and there was a saggy titted old biker gal sitting in it with a perplexed expression on her face.

The caption was the biker dude saying, "What's to understand? I don't want ya stinkin' up my motorcycle seat no more".