Whats on this guys bike that...?

In this video he is going backwards without pedaling backwards. What does he have on his bike that allows him to do that? How much do one of these things cost (the part not the bike)? And is it compatible with a 2007 Haro F3?

http://www.vitalbmx.com/videos/member/Cb...

No, because on a regular bike you would have to peddle backwards if your bike is moving backwards.

Don't answer this if you know nothing about bikes or bmx.

It is called a "Flatlanders Freecoaster Hub". They cost about $150 at you can purchase them at most high end BMX shops. Here is one from Dans Comp: http://www.danscomp.com/products.php?cat...
Hope this helps.

Kimber

i think it's called gravity...
it's free...
and it's compatible with everything...

i think he just has goo dbalance and maybe a reverse

Actually this question is better than it appears on the surface. if you would go backwards on my road bike the pedals would be turning backwards with the rotation of the wheel. (try turning the wheel backwards on a stand sometime!) The bmx must have some kind of coasting feature? Hopefully some of the guys with experience in bike shops will answer this.

EDIT: Hopefully some of the PEOPLE with experience in bikes will answer this -- sorry Kimber, you nailed the answer!

What goes up must come down.
He is going up an incline therefore when he stops peddling he must come back down.
SIMPLE.

The answers on here are friggin hilarious "gravity" bwah ha ha. The reason that he doesn't need to pedal backwards is because of the freehub body in the rear hub/wheel. It has a one-way clutch similar to that of a regular freehub, but it works on a one way cam mechanism rather than ratchet and pawl. Basically the pawl works with mechanical interference, pawl in a groove, clickity clickity clickity, and this works by applying a radial compressive force caused by cams and drives on friction. When you back pedal balls in the cam roll down in the cam grooves and no radial force is produced hence you can freecost backwards. I believe true precision makes a hub (not 100% sure) and Chosen which is a taiwanese company. They weigh more, but are dead silent.

Kimber is right, it's a freecoasting hub. As you've seen they let you ride backwards without pedaling and they're getting pretty popular in the bmx street scene. If you can't ride fakie normally (pedaling backwards) I doubt a freecoaster is going to make you somehow learn to do it. On top of that they aren't cheap and I know the geisha hubs are pretty high maintenance.

And I love all of the dumb *** responses from people who don't know any thing about bmx street or just bikes in general. No kidding he rolls backwards because of the incline. Maybe you should go out and try to do that without having the cranks spin backwards. If you don't have a freecoasting hub, let me know how it goes. If you're going to be a smart *** in your response, at least know what you're talking about.

sorrry i don't know anything
I am just being honest

One Word: Freecoaster.
Its not worth it man. Most bikers buy it and regret buying afterwards it takes time getting used to and its harder to get out of a fakie with it. But its basically compatible with any BMX bike.