Why are the seats on bikes as hard as granite? I am planning on running my first 50k this January and the course is almost 2 hours away. Ive never been to the course so I borrowed a friends mountain bike to scout the course in one day instead of driving several times to run it. Now this was a top of the line bike (Stumpjumper Expert). By the time my day was done I felt like I had spent the night at Over 9.5's house (I like you and all Over, but not THAT much). With all the technology in the industry, why are the seats so freaking hard?