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Folding Bikes Discuss the unique features and issues of folding bikes. Also a great place to learn what folding bike will work best for your needs.

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Old 10-17-11, 11:52 AM   #1
MichaelW
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Dahon lockjaw bolt replacement.

The off-centre tightening bolt of my Lockjaw finally rounded out so the Allen key can barely turn it. It seems to be a common failure of the part.
I was able to get a spares pack pretty easily in the UK. This is sufficient to replace all the removable parts of both hinges.
The new OC bolt, which is of good quality had some minor changes in design, so I also switched the pivot bolt that it slides into. All the other parts were unchanged.
Its an easy to do, 5 minute job and the new closure is very solid.
I downloaded a pdf of instruction from Thorusa but they seem to have been removed. I still have the pdf if anyone needs it but better ask the author at Thorusa
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Old 10-17-11, 12:38 PM   #2
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email it back to me ... just in case i lost it with the latest website upgrade ...than i need to put it back on


absolutely NO PROBLEM to send it all around to anybody who wants it

Thanks Thor
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Old 03-30-13, 04:38 AM   #3
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Thread resurrection -

I have tracked down parts to replace a rounded out lockjaw OC bolt, but the UK suppliers don't have instructions and won't perform this repair on bikes they didn't supply themselves.

Does anyone know where to find instructions for this repair, or is it foolproof even without ? I'd rather leave it locked than mess up a repair and make the bike unusable.
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Old 04-06-13, 08:19 PM   #4
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PM Thor (brakmeister).
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Old 01-06-15, 01:21 PM   #5
DelBrighton
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Hi Thor...the bolts went on my Dahon Cadenza XL so going to do a replacement job..any chance you could send the instructions as per previous thread...thank you Del
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Old 08-06-17, 09:39 AM   #6
Anderton
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Lockjaw Hinge

I know that this is an old thread but I hope that you can help me.
I have just purchased a used Dahon Cadenza with lockjaw hinges - I received the bike in assembled position without any fold / unfold instructions. In desperation I undid all bolts to get the bike unfolded and into my car.
Now I have found the Dahon instructions that show how to fold / unfold by turning the OC bolt 180 degrees and how to adjust the adjusting bolt but I can't find any instructions on how to set the pivot bolt.
I screwed the pivot bolt all the way in and then the hinge would not open - do I just unscrew the pivot bolt just enough for the hinge to open ?
Any help would be greatly appreciated
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Old 08-06-17, 01:51 PM   #7
Abu Mahendra
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Google it. I think the ThorUSA site has it too. Btw, there are two types of LockJaw hinges.

Quote:
Originally Posted by Anderton View Post
I know that this is an old thread but I hope that you can help me.
I have just purchased a used Dahon Cadenza with lockjaw hinges - I received the bike in assembled position without any fold / unfold instructions. In desperation I undid all bolts to get the bike unfolded and into my car.
Now I have found the Dahon instructions that show how to fold / unfold by turning the OC bolt 180 degrees and how to adjust the adjusting bolt but I can't find any instructions on how to set the pivot bolt.
I screwed the pivot bolt all the way in and then the hinge would not open - do I just unscrew the pivot bolt just enough for the hinge to open ?
Any help would be greatly appreciated
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Old 08-07-17, 02:46 PM   #8
ThorUSA
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I am not allowed per forum rules to post links here
the pdf is in the technical section
Thanks Thor
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