Pretty much as the title really. I went to my first ever spin class last night. I had my cycling shorts and spd shoes so i was hoping it would replicate the road in relative terms. I was quite surprised at how much emphasis was put on spinning you legs stupidly fast and really low resistance, a lot of people where whizzing there legs around much fast then I could - as you change down when cycling out side. The part I was dreading - the climbs - I was actually ok at - standing up with quite high resistance..... Anyway at the end I was a sweaty mess, and no doubt a good cardio workout - what are people views on whether this will make me fast on say a 50 mile ride ?