translating spinning to regular biking
I can't get out on the bike every day because of my work, so I have a good spin bike that I can ride on the days that I can't ride outside. When riding my bike, I feel good and don't have any hurts. On the spin bike, I feel fine, but the next day, my lower back hurts A LOT. I re-adjusted the seat and handlebars today and think I might have had the seat too high, so we'll see if this helps.
In the meantime, how can you translate miles spinning to miles on a bike on the road? It takes me about as long to ride a mile on the spinner as it does on a bike, and I can dial up hills on the spinner, like on the bike. Is it reasonable to claim the miles that the odometer on the spinner tells me I am doing? Or is there a convention for translating one to the other?
Thanks,