What are some good U.S. websites where i can find accessories like harnesses,line,bars etc... I've found just a couple, most are U.K. I'm looking to find a nice entry level 4 line bar..and possibly a harness. Looking to do some skiboarding this winter...thought I should start to practice a bit, while its still nice out. Never flown my 5m on bar. I have an Eolo Radsail Pro..if that makes any difference. I think all the bars can adapt to any kite really...correct me if i'm wrong.

awindofchange.com

kittyhawkkites.com
cobrakites.com

Powerlinesports.com .. ask to speak to andrew, he's the owner guy and will definitely help you with getting the correct sized bar. Also, there are several other places as mentioned by Scott that I'm sure can help you out as well. Your best bet is to call the shops and ask the questions though.

Just about any 4-line kite can be hooked up to a 4-line bar. Different kites react differently to the bar use though. While kites that are meant to be flown by bars have been tweeked to fly better, other kites that haven't been tweeked tend to turn a bit more slowly, etc. For instance the Beamers vs. the Beamer TSR. HQ release the TSR series for the simple fact that the Beamers bridal system needed a few tweeks to get it to fly and turn right on a bar. It's not to say that people with the regular beamers couldn't fly with a bar, nor is it to say that HQ was just doing a gimmiky thing by putting out the TSR. It's mostly about the person purchasing the kite..are they willing to mess with the bridal, the kite lines and the bar to get it to fly correctly or not? Anyone with some knowledge and know how can get a Beamer to fly like a beamer TSR, it's just some trial and error to get it tuned right.

My thought would be that the kite will fly fine on a bar without many adjustments, so long as you get the right size bar. Also, you'll notice it will probably turn slower then it does on handles, so you've got to be prepared to turn the kite before getting too close to the edge of the wind window.
~Joe