Go Back  Bike Forums > Bike Forums > Folding Bikes
Reload this Page >

Expanded Tern recall

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.

Expanded Tern recall

Old 05-11-20, 05:32 PM
Senior Member
downtube's Avatar
Join Date: Sep 2005
Location: Greensboro, NC
Posts: 1,496

Bikes: Many Downtube Folders :)

Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 278 Post(s)
Likes: 0
Liked 22 Times in 15 Posts
I don't think anything could be worse

Designer of Downtube Folding Bike
Ph.D. Temple University ( Math )
Biked across the USA twice
Semi-active chess player ( two time Bahamas National Champion )
Sivananda ( Bahamas ) Trained Yoga instructor ( 2013 ) and ThetaHealer since 2013
Bicycle delivery worker for Jimmy John's. Delivering is the best workout I have ever had.
downtube is offline  
Likes For downtube:
Old 05-12-20, 02:07 AM
Senior Member
Join Date: Aug 2014
Location: UK
Posts: 414

Bikes: Dahon Jetstream p8 (sold), customized Dahon Helios P18, customized Dahon Smooth Hound P9, Planet X Free Ranger (mullet setup), Frog 52 9s and Frog 48 1s

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 128 Post(s)
Liked 116 Times in 88 Posts
I was just looking at the failure picture above and it seems there is very little if any penetration in the weld. To me, it looks like the bead of molten aluminium acted as a glue rather than a structural weld...
Fentuz is online now  
Likes For Fentuz:
Old 05-12-20, 07:40 AM
Senior Member
Join Date: Apr 2006
Posts: 3,637
Mentioned: 13 Post(s)
Tagged: 0 Thread(s)
Quoted: 374 Post(s)
Likes: 0
Liked 101 Times in 75 Posts
That was the problem. The factories hired people with no welding experience and sold the bikes without testing the frames first. Being a welder there was no or little welding penetration of the metal parts. Roger

Last edited by rhenning; 05-12-20 at 01:04 PM.
rhenning is offline  
Likes For rhenning:
Old 05-12-20, 11:38 AM
Senior Member
Join Date: Jun 2018
Posts: 63
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 20 Post(s)
Liked 3 Times in 3 Posts

A bad welder can kill you (basically).

I fully agree with you.

When I obtained my certification as a car mechanic, welding was part of the comprehensive examination AND if one failed the welding test one failed ALL TESTS!

So, not everyone has a desire to fail like tern!

But anyway, I hear you, loud and clear.
termv is online now  
Old 05-13-20, 10:43 PM
Senior Member
Join Date: Jan 2017
Posts: 1,016
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 333 Post(s)
Likes: 0
Liked 111 Times in 79 Posts
When dahon changed their dealer system in Europe, the European distributors that got pushed out were selling off their stock of naked dahon frames, but that was many years ago. You could ask some current dealers if they're willing to sell you frames.
tomtomtom123 is offline  
Related Topics
Thread Starter
Last Post
Folding Bikes
04-25-19 04:27 PM
Folding Bikes
03-03-18 06:13 PM
11-04-15 04:50 PM
Folding Bikes
02-24-14 09:41 AM
Folding Bikes
05-22-12 05:29 PM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.