one of the reasons I only ride a recumbent in the gym is that the bikes in spin class, and the stationary bikes do nothave adequte sadddles, nor can I take my own saddle. Even if I could the positional relationship between seat and handlebars is pretty bad. I should bite the bullet and get an indoor trainer but with only 1 bike and really not minding the recumbent for an hour at high resistance intervals and then an hour of joggiing intervals plus some weights and resistance work equals good cross training.

I also live in Houston so unless it is freezing and or raining heavily or hurricaning, I can usually ride out.