Tern frame problems, hinge design?
This came up in a couple of threads here recently and it got me curious so I went digging a bit. I found some references of broken frames and a subsequent recall around the 2017 time period. That was 3 years ago. It seems there was a lot of time between then and now for other changes to be made. The main change that appears to have been made is the switch from a dual pin hinge to a single pin hinge.
However, the frame failures that I came across were the weldment between the hinge and the frame, not the failure of the hinge but the weld holding the hinge and the frame pieces. A change in pin design would have 0 affect on the weldment failures. Does anyone know of any process changes to the manufacturing, specifically the hinge to frame weldments, that have addressed the faulty weld issue? Or are there still known frame failures in later model (post-2017 recall period to current models) Terns? I am looking at some options for my girlfriend. We've talked about folders before but it will be a while before we do anything for her. |
Originally Posted by KC8QVO
(Post 21368193)
This came up in a couple of threads here recently and it got me curious so I went digging a bit. I found some references of broken frames and a subsequent recall around the 2017 time period. That was 3 years ago. It seems there was a lot of time between then and now for other changes to be made. The main change that appears to have been made is the switch from a dual pin hinge to a single pin hinge.
However, the frame failures that I came across were the weldment between the hinge and the frame, not the failure of the hinge but the weld holding the hinge and the frame pieces. A change in pin design would have 0 affect on the weldment failures. Does anyone know of any process changes to the manufacturing, specifically the hinge to frame weldments, that have addressed the faulty weld issue? Or are there still known frame failures in later model (post-2017 recall period to current models) Terns? I am looking at some options for my girlfriend. We've talked about folders before but it will be a while before we do anything for her. My first folder, a $300 Zizzo EuroMini Urbano has been nearly flawless over almost 4 years now and owes me nothing. It's a great bike (with a lifetime frame warranty as well) and despite my other bicycles gets ridden very frequently. The point is, it's a buyer's market with lots of product to pick from. Unless...you HAVE TO HAVE a Tern....but then I'd ask why ? |
Originally Posted by KC8QVO
(Post 21368193)
This came up in a couple of threads here recently and it got me curious so I went digging a bit. I found some references of broken frames and a subsequent recall around the 2017 time period. That was 3 years ago. It seems there was a lot of time between then and now for other changes to be made. The main change that appears to have been made is the switch from a dual pin hinge to a single pin hinge.
However, the frame failures that I came across were the weldment between the hinge and the frame, not the failure of the hinge but the weld holding the hinge and the frame pieces. A change in pin design would have 0 affect on the weldment failures. Does anyone know of any process changes to the manufacturing, specifically the hinge to frame weldments, that have addressed the faulty weld issue? Or are there still known frame failures in later model (post-2017 recall period to current models) Terns? I am looking at some options for my girlfriend. We've talked about folders before but it will be a while before we do anything for her. |
Grumpy old men
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Originally Posted by flc97404a
(Post 21392809)
Grumpy old men
|
Ditto what TDS 101 said. Roger
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Originally Posted by tds101
(Post 21393759)
Originally Posted by flc97404a
(Post 21392809)
Grumpy old men
Originally Posted by kayakindude
(Post 21350976)
Originally Posted by flc97404a
(Post 21350840)
tds101 I have been informed you have been known to be rude and speak before you think, all you know is the bad on something like the TERN company, they have improved, yes the past they have had problems, but doesn't everybody like you, let the thread starter do his own investigation before leaving negative comment.
Originally Posted by tds101
(Post 21350982)
Originally Posted by flc97404a
(Post 21350840)
tds101 I have been informed you have been known to be rude and speak before you think, all you know is the bad on something like the TERN company, they have improved, yes the past they have had problems, but doesn't everybody like you, let the thread starter do his own investigation before leaving negative comment.
https://www.bikeforums.net/folding-b...rn-recall.html
Originally Posted by flc97404a
(Post 21350994)
Originally Posted by kayakindude
(Post 21350976)
For someone with 2 posts you seem really defensive of your capitalized TERN.
Originally Posted by flc97404a
(Post 21351019)
then don't be negative towards my reply to the thread without explaining why tern is not good to you, I know enough about their problems in the past and they have made corrections towards the issues they had. Grumpy old man...
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Originally Posted by KC8QVO
(Post 21394117)
I was just after information when I started this thread, but apparently I agitated a beehive. In any event, now the comments make some sense... but again, I was just after information - more recent experience with frame failures beyond the recall that tds101 mentioned.
Now, I'm a tern owner, and quite a few others on this forum are as well. When we share information we don't do it to insult others, we do it out of concern. That's why I originally commented. I don't trust tern, and bikes keep having failures,...even newer models. If you look at that thread I shared, you'll notice new additions from time to time, and if you follow links within, you'll see it's definitely an ongoing problem with tern. And, if I'm not mistaken, there might be other threads posted with this issue here in the forum. |
Apparently they still think that focusing on marketing and media manipulation is more important/profitable than learning how welding works. But I liked the "old men" accusation. Thanks for the laugh!
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