Btw I'm biking like 13.5 miles in 1 hour at around 90 RPM, is that a beginner amount of miles? What is a long bike ride indoors?
That sounds long to me! There is no way I can sit on a stationary bike for more than 5 miles... my feet go numb (odd, I know- but it doesn't happen on my real bike).

As for the spin class bikes... I can do that for 1 hour... but it's torture too. After 15 minutes I start watching the clock.

Finally, I have noticed that I seem to go *slower* indoors than outdoors. The effort also seems greater indoors for some reason.