So you've seen Cam McCaul and others bar spinning, tail whipping and never blowing a hose... Here's the trick a Trixer Hydraulic Rotor.
Coming from a German manufacturer, the rotor replaces your upper crown and spacers. Add your Goodridge brake lines and you've got the best system money can buy.

More information on their site. http://www.trickstuff.de/eng/prod_twister.htm
Seems you can only buy it in their online store: - check the list on the new products page - they have a lot of varied options to suit your needs.
http://www.trickstuff.de/shop/product_info.php?products_id=374

Tr!xer - The Hydraulic Rotor, 1 1/8" Fork, 1.5" steerer tube, standart headset, DOT brake fluid The Trixer is like a special spacer between headset and stem.
Just with the Trickster is it possible to spin the bar how ever you want - while using a hydraulik brake!
Much fun at practice!
The freestyle A-Head-Cap completes your system! Please order separate!
You need the Tr!xer Connection Kit and your type of Goodridge Brake Hose! Please order separate!

Thanks to
Match Videozine and
Biketrials.ca for photos.