Dahon Catasthofic Frame Failure - dahon Roo
11-30-20 | 08:30 AM
#1
Thread Starter
Stardust
Joined: Apr 2017
Posts: 377
Likes: 35
From: Rio de Janeiro
Bikes: Dahon Curve Sturmey Archer Srf8; Brompton Sturmey Archer Srf8; Brompton M6r
Dahon Catasthofic Frame Failure - dahon Roo
Hey,
I wanna share a accident whose happen after a cathastrophic frame failure of dahon roo D7.
Riding on Sao Paulo on a major avenue the frame silpy snaps in half, leading the rider to hit hard on floor with some burns and minor injuries.
Dahon roo d7 snnaped in half
The closeup on failure point shows zero to none weld penetration on critical hinge point.
I wanna share a accident whose happen after a cathastrophic frame failure of dahon roo D7.
Riding on Sao Paulo on a major avenue the frame silpy snaps in half, leading the rider to hit hard on floor with some burns and minor injuries.
Dahon roo d7 snnaped in half
The closeup on failure point shows zero to none weld penetration on critical hinge point.
11-30-20 | 04:48 PM
#2
QR-disc must die!!!
Joined: Sep 2018
Posts: 703
Likes: 199
From: Shenandoah Valley, Northern Virginia.
Bikes: '99 Trek 520, '20 Kona Sutra (FOR SALE 48cm), '21 Simon-Bikes mini-velo and a chromoly-framed folding bicycle with drop-bars and V-brakes, that rolls even while folded.
That's what aluminum does after having received enough fatigue. One more reason why I choose chromoly instead, at least when it comes to frames/forks.
Chromoly: always been good to me.
Chromoly: always been good to me.
Last edited by Nyah; 11-30-20 at 04:53 PM.
11-30-20 | 05:17 PM
#3
Palmer
Joined: Mar 2007
Posts: 9,168
Likes: 2,273
From: Parts Unknown
Bikes: Mike Melton custom, Alex Moulton AM, Dahon Curl
"DAHON is instrumental in the fight against counterfeit products. Every authentic DAHON bicycle comes with a serialized 3D holographic label that can be validated on DAHON's online authentication system at www.dahon.com."
11-30-20 | 05:30 PM
#4
As hinted above, the Dahon pictured above may be a counterfeit.
11-30-20 | 05:33 PM
#5
Senior Member
Joined: Jul 2005
Posts: 654
Likes: 192
From: Dublin, OH
Bikes: Serial bike flipper
It looks like a lousy weld, it didn't even penetrate the main tube's material. Don't blame aluminum for shoddy workmanship.
12-02-20 | 02:15 AM
#6
Thread Starter
Stardust
Joined: Apr 2017
Posts: 377
Likes: 35
From: Rio de Janeiro
Bikes: Dahon Curve Sturmey Archer Srf8; Brompton Sturmey Archer Srf8; Brompton M6r
12-02-20 | 06:37 AM
#7
Senior Member
Joined: Aug 2011
Posts: 2,768
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From: Paris, France
12-02-20 | 09:49 AM
#8
Senior Member
Joined: Sep 2005
Posts: 1,498
Likes: 24
From: Greensboro, NC
Bikes: Many Downtube Folders :)
Hopefully the rider is safe!
Thanks,
Yan
Thanks,
Yan
__________________
Designer of Downtube Folding Bike
Ph.D. Temple University ( Math )
Biked across the USA twice
Semi-active chess player ( two time Bahamas National Champion )
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Bicycle delivery worker for Jimmy John's. Delivering is the best workout I have ever had.
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.
