http://ozreport.com/forum/viewtopic.php?t=28493

Sorry, but you should only use these wheels if you want to break
the control bar.

You need a wide contact base between wheels/skids and the control bar. Also the
ATOS control bar has these knobs for fixing the wheels, why don't you use them?
If you would, the hole control frame would work as good shock absorber.

I work part time for A-I-R, but my posts should be in no way regarded as
official posts from A-I-R if not noted otherwise.

Read the discussion at the URL above as various authors argue the
points.