thepiscator said:Have had a D7 now a few weeks ... but
have noticed that there is some movement on the handlebar main stem.
Its about 1/4 of inch and the locking mechanism does not click down as
tight. Anyone know if this is normal with usage or should I get it
looked at.
It sounds distinctly abnormal, and yes, you should have your dealer look at
the bike.
I ought to draw your attention to a thread on the Dahon discussion forum:
http://www.dahon.com/forum/index.php?showtopic=1675
in which I detailed very similar behaviour with my Helios SL. In a
nutshell, the sliding latch block part couldn't tighten the clamp because
the thread which engages with the adjusting bolt had stripped, and there was
no way to tighten it - so the handlebars rocked backwards and forwards and
side to side, and the QR lever didn't really do anything. This happened
within about eight weeks of buying the bike. Dahon replaced the entire
handlepost under warranty and so far it's been fine.
Some owners have alternatively reported the aheadset becoming loose with
fairly similar symptoms. Have a look at:
http://www.dahon.com/forum/index.php?showtopic=1784
Side note: you didn't mention which particular D7 you have - but if it's the
Impulse D7, the 'Re-Bar' bit of the frame can have a tendency to load and
unload when you alter your weight on the handlebars, and this flex manifests
itself as forwards and backwards handlebar movement - but not a rattly sort
of movement. Most of the other D7 models use the 'Speed' frame and are
probably a little stiffer in this respect.
Hope this helps!
Becky