Swavek said..
50 cm is a longish bar for 6m kite - no problem, just bear in mind the the kite will be sensitive, i.e. small bar movemen will translate into a quick turn.
If geometry of the original bar is similar Ozone bar ( centre lines split close to the bar) you will be fine.
One line safety release is a safer system than two line release - Ozone is a one line, means safe.
Cheers Swavek. I agree it should be safe to try. I'll give it a shot and see how it flies :-).