I started doing spin classes this fall, so as a relative n00b, I can give a few pointers for what they're worth:
- cycling shorts, for sure
- i just wear a wicking (you sweat a LOT) t-shirt, not a jersey... although you certainly could wear a jersey without anyone caring.
- SPDs...I put spd cleats on my road shoes (riding the 'cross bike outdoors this time of year anyway...) Most bikes have pedals with SPD on one side, straps on the other
- water - I take 2 bottles, and usually drain them both in 45 mins (you sweat a lot!)
- towel - to stop from forming puddles (or at least reduce the size of the puddles) - did I mention you sweat a lot when riding indoors???
- HRM - I did the first few classes without mine (battery was dead) and thought I was working pretty hard (based mostly on sweat production I think) but when I got my HRM back, realized I was never getting my heart rate about about 80%...it's deceiving. Now that I am taking the HRM, I feel I'm getting a much better workout
- Agreed that the fat/soft saddles suck.. I almost feel like requesting they put decent saddles on at least a couple of bikes (I go to classes at a local bike shop that I have a good relationship with...)
- ignore the instructor when they tell you to move your upper body around... keep your outdoor riding form rather than starting bad habits during the winter!