Hiya,
I hope the content of my post won't cause offence but I just had to comment on the spinnin class and share my experience.
I went at 22st (only the once

)
I really enjoyed it listening to the tutor talking us through the route we were cycling, visualising the lake by the side of us, through some trees and up a hill.....Altering the resistence to imagine we really were climbing a huge hill......kept working hard, breaking out in a sweat and standing slightly to get to the top....pedalling becoming harder and harder as we reached the top and then the huge relief to drop the resistance right down and cycle down the otherside
Except that bluddy steel wheel don't half go like the clappers when you take the resistence down and pedal down the hill.

I couldn't stop my legs and I think I wasn't the only person in the room to complain of bruised erm....... well lets just say ladybits

by the time I'd managed to stop the ruddy thing! LOL
Seriously though, it was a lot of fun, but do take the advice about the padding
Kitty xxx