Spinning classes are fine but it does take a few classes before you can work as hard as you think you should be able to.
First class and you will find the "Experts" that can do everything and you think they must be "Ultra" Fit.
By the 4th. and you will be up to their level but struggling while they do it with ease---If they find it that easy why don't they find something that will tax them
Then the day comes when you can match their distance- use the same gearing on the hills- ride out of the saddle for longer than them and you are finding it easy
That is when the big mistake comes as you feel sociable enough to ask them out for a ride- so what form of riding do they do?---Road or MTB? The only cycle they ever use is the Spin Bike and they are expert at that.
You then find out that the last time they were on a bike was years ago but they might be able to dig it out of the basement but it will need a lot of work to get it into a ridable condition.
Spin classes are addictive and can give you a good workout- but don't get hooked.
Bike riding will never be the same agin.
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How long was I in the army? Five foot seven.
Spike Milligan