Have you ever ridden a bike without a seat? It just doesnt feel right. plus sometimes you sit down and coast around, like down a hill. Also when you land a trick and have to turn quickly, it's nice to have something to lean your theighs against other then a sharp seat tube.

Frozin: Those are some pretty crazy road bikes, the Pinarello is pretty sweet, i've always liked those, and the Orbea is nuts to. Plus, thats a nice BMX, you can learn quite abit just tooling around with them.