Hey all, I just bought a set of vintage Weyless rollers that are in supurb condition, and after about my third try, I am up and running, one question for all you roller boys....WTF? I rode at a moderate pace for 30 minutes and had a pool of sweat on the floor like I have never seen! I have a spinner bike, and a nice Recor recombant, for those crappy days outside, and I have hammered both of those for over an hour, and have not sweat like that! So what is the difference? The rollers are cool, you ride your own bike and really simulates real riding, I just cant understand why this felt like so much more of a workout?