Dahon Mu Uno... damaged? Help please!
01-23-23, 04:32 PM
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Dahon Mu Uno... damaged? Help please!
Hey everyone,
I recently picked up a Mu Uno from facebook Marketplace. I didn't notice notice week or so after that it's bent
. The handle post looks to be bent off to the right. I tried to post a pic but I'm not allowed yet
Seller has disappeared, I'm now hoping to repair. Just wondering if anyone can shed any light on the most likely culprit... forks or stem? And where to buy replacement.
Many thanks
I recently picked up a Mu Uno from facebook Marketplace. I didn't notice notice week or so after that it's bent
. The handle post looks to be bent off to the right. I tried to post a pic but I'm not allowed yet Seller has disappeared, I'm now hoping to repair. Just wondering if anyone can shed any light on the most likely culprit... forks or stem? And where to buy replacement.
Many thanks
01-23-23, 05:28 PM
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Is the handlepost actually bent, or, is it just installed askew?
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01-23-23, 11:34 PM
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Agree with Nyah
The stem can be rotated.
A pic would help us determine if it's bent or just needs adjustment
And if it's just the stem, it's an easy fix
The stem can be rotated.
A pic would help us determine if it's bent or just needs adjustment
And if it's just the stem, it's an easy fix
01-24-23, 02:17 AM
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As you are UK based, you could email CH white in Malmesbury or give them a call .
01-24-23, 06:21 AM
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Thanks for the replies... I'm not allowed to post pics yet as I haven't done my 10 posts.i have tried rotating the handlepost, but it is then off axis with the wheel direction.
if possible i could dm a pic to someone to be posted on my behalf?
Thanks
if possible i could dm a pic to someone to be posted on my behalf?
Thanks
01-24-23, 11:45 AM
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If you are referring to the hinge being set off at 45 degrees from center, that is the way it must be for the handlebar to fold down parallel to the bike frame.
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01-25-23, 03:19 PM
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Pretty sure it's damaged
01-25-23, 03:19 PM
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01-25-23, 06:49 PM
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If the handlepost needs replacement, that's not very difficult to do, assuming you have a threadless headset. Post a photo so that we can confirm your problem. Up your post-count by posting in this thread. No one will consider it spamming.
01-25-23, 08:12 PM
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Dahon had a post recall, Had to replace mine on a Curve. Easy peasey.
Check for the recall. Had cracks in the securing wedge of hinge IIRCC
Check for the recall. Had cracks in the securing wedge of hinge IIRCC
01-25-23, 08:25 PM
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So can you explain which direction yours ls leaning?
. This is mine.
. This is mine.
01-26-23, 02:17 AM
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They had a problem with the clamping undercut that clamp the steerer on the fork. the undercut receiving the hinge locking slider was too sharp causing stress raiser eventually cracked. The later revised model has a rounded shallower undercut.
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01-30-23, 12:39 AM
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ok, this is interesting. Wonder if it applies to mine?
01-30-23, 02:23 AM
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This view is probably the best one to discern what's going on.
However, the view isn't really close enough. If you get really close to
the headtube, can you see light between where the handlepost, headset
and/or the headtube come together on the non-drive side?
Remove the handlepost and start looking for any signs of damage.
Is the top of the fork steerer tube bent where the handlepost clamps onto?
Does the top of the headset look mashed?
If you stand the handlepost up, with the bottom flat against a tabletop,
does it still look bent - If so, the handlepost is either damaged or
malformed to begin with. If this is the case, it's not difficult or expensive
to get a new handlepost.
However, the view isn't really close enough. If you get really close to
the headtube, can you see light between where the handlepost, headset
and/or the headtube come together on the non-drive side?
Remove the handlepost and start looking for any signs of damage.
Is the top of the fork steerer tube bent where the handlepost clamps onto?
Does the top of the headset look mashed?
If you stand the handlepost up, with the bottom flat against a tabletop,
does it still look bent - If so, the handlepost is either damaged or
malformed to begin with. If this is the case, it's not difficult or expensive
to get a new handlepost.
Last edited by Nyah; 01-30-23 at 02:29 AM.
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01-30-23, 02:42 AM
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As per other comment, it looks like the plastic top headset part is crushed as if it has a big side impact.
You will need to open the stem, undo the clamping bolt and fork threaded cap to establish if the headset is dead or the fork steerer is bent.
Have you got close-up pictures?
Have you spoken to CH White in Malmesbury?
You will need to open the stem, undo the clamping bolt and fork threaded cap to establish if the headset is dead or the fork steerer is bent.
Have you got close-up pictures?
Have you spoken to CH White in Malmesbury?
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01-30-23, 02:53 AM
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I think the fork steerer the stem is clamped to is bent.
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01-30-23, 04:51 AM
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01-30-23, 05:48 PM
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02-03-23, 12:01 AM
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Fork Stem is likely bent.
You check for damage on the handlebar stem too.
If you can, you'll need to unscrew the center retainer (10mm) and the 2 side compression screws (5mm?) and take a look at the fork stem.
You check for damage on the handlebar stem too.
If you can, you'll need to unscrew the center retainer (10mm) and the 2 side compression screws (5mm?) and take a look at the fork stem.
