Quote Originally Posted by alpinerabbit
..... note to self: when riding during menses, do not wear zebra-striped shorts. wear black.
Rabbit; hop on over to one of the many sites discussing the diva cup. Then you can wear your white shorts all month if you want. (Although I hope they don't really make white shorts...)

CR400; My coach has told me on numerous occasions that cadence on the road should be between 75 - 120. At 75 stand up!! (that's him talking) I can tell you for sure that cadences in the 180 range in spin class are NOT good for you. They are potentially damaging on the joints. Plus they are not particularly beneficial to the muscles. And you aren't supposed to get a pec workout in spin class. You shouldn't even get your cadence up to 150. Around 140 or so should be the max, above that increase your tension not your foot speed. I'm surprised your instructor is telling you to go there.