Answer:
Runs smoother than any rhyme, loves to fall but cannot climb.
I love to dance and twist and prance. I shake my tail, as away I sail. Wingless I fly into the sky.
It is weightless, you can see it. If you put it in a barrel it will make it lighter?
What has roots as nobody sees, is taller than trees. Up, up it goes, and yet never grows?
What type of bar gets you wet walking in and out of it but keeps you dry inside?
I fly to any foreign parts assisted by my spreading wings. My body holds an hundred hearts Nay I will tell you stranger things when I am not in haste I ride and then I mend my pace anon.