Dahon Catasthofic Frame Failure - dahon Roo
#1
Stardust
Thread Starter
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.
#2
QR-disc must die!!!
Join Date: Sep 2018
Location: Shenandoah Valley, Northern Virginia.
Posts: 703
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.
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 397 Post(s)
Likes: 0
Liked 199 Times
in
147 Posts
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.
Likes For Nyah:
#3
Palmer
Join Date: Mar 2007
Location: Parts Unknown
Posts: 8,611
Bikes: Mike Melton custom, Alex Moulton AM, Dahon Curl
Mentioned: 37 Post(s)
Tagged: 0 Thread(s)
Quoted: 1662 Post(s)
Liked 1,815 Times
in
1,055 Posts
"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."
Likes For tcs:
#4
Senior Member
Join Date: Jan 2005
Location: Baltimore, MD
Posts: 5,371
Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Quoted: 2482 Post(s)
Liked 2,952 Times
in
1,677 Posts
As hinted above, the Dahon pictured above may be a counterfeit.
#5
Senior Member
It looks like a lousy weld, it didn't even penetrate the main tube's material. Don't blame aluminum for shoddy workmanship.
Likes For seat_boy:
#6
Stardust
Thread Starter
#7
Senior Member
Join Date: Aug 2011
Location: Paris, France
Posts: 2,497
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 573 Post(s)
Liked 118 Times
in
99 Posts
#8
Senior Member
Join Date: Sep 2005
Location: Greensboro, NC
Posts: 1,498
Bikes: Many Downtube Folders :)
Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 282 Post(s)
Likes: 0
Liked 24 Times
in
17 Posts
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 )
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.
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.
Likes For downtube: