All season long I road 30 - 50 miles / week. Tonight I did my first 'spinning' class. First the good news. A. I was cycling. B. I worked up a good sweat. Now the downside. We spent ALOT more time standing than what I'm used to and I managed to get a good case of calf cramps. Does anyone have any tricks to keep the cramps at bay? Does anyone else 'spin' in the winter? How do you like it?