Go Back  Bike Forums > Bike Forums > General Cycling Discussion
Reload this Page >

This bent frame cannot possibly be safe.

Search
Notices
General Cycling Discussion Have a cycling related question or comment that doesn't fit in one of the other specialty forums? Drop on in and post in here! When possible, please select the forum above that most fits your post!

This bent frame cannot possibly be safe.

Thread Tools
 
Search this Thread
 
Old 01-08-24, 12:18 PM
  #26  
mstateglfr 
Sunshine
 
mstateglfr's Avatar
 
Join Date: Aug 2014
Location: Des Moines, IA
Posts: 16,617

Bikes: '18 class built steel roadbike, '19 Fairlight Secan, '88 Schwinn Premis , Black Mountain Cycles Monstercross V4, '89 Novara Trionfo

Mentioned: 123 Post(s)
Tagged: 0 Thread(s)
Quoted: 10970 Post(s)
Liked 7,496 Times in 4,192 Posts
Originally Posted by Jicafold
Relax. It doesn't matter of people on this forum have a dog or cat or not, but that gets discussed ad nauseam.
Relax. You asked for opinions and I gave you two.
mstateglfr is offline  
Likes For mstateglfr:
Old 01-08-24, 12:36 PM
  #27  
Maelochs
Senior Member
 
Maelochs's Avatar
 
Join Date: Oct 2015
Posts: 15,494

Bikes: 2015 Workswell 066, 2017 Workswell 093, 2014 Dawes Sheila, 1983 Cannondale 500, 1984 Raleigh Olympian, 2007 Cannondale Rize 4, 2017 Fuji Sportif 1 LE

Mentioned: 144 Post(s)
Tagged: 0 Thread(s)
Quoted: 7653 Post(s)
Liked 3,482 Times in 1,838 Posts
OP: when you ask for "opinions" .... Opinions on whether it is probably safe to ride? Opinions on whether it is wrong to try to sell it? Opinions on whether we should buy it? Opinions on whether opinions taste better than licorice? Unclear at this time ......

Nothing wrong with selling stuff for parts. I wouldn't buy it... because I have no use for single-speed ... but if I were attending college it would be a super bike for around campus.
Maelochs is offline  
Old 01-08-24, 12:55 PM
  #28  
wheelreason
Senior Member
 
Join Date: Aug 2009
Posts: 1,820
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 505 Post(s)
Liked 638 Times in 377 Posts
Originally Posted by saarf
Ha


Had a plate put in my shoulder on the 4th , still sore now
Ouch, Hit and run? Looks more like stopped short and run. Heal up quick...
wheelreason is offline  
Old 01-08-24, 01:37 PM
  #29  
easyupbug 
Senior Member
 
Join Date: Jan 2013
Posts: 2,683

Bikes: too many sparkly Italians, some sweet Americans and a couple interesting Japanese

Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 569 Post(s)
Liked 589 Times in 412 Posts
Originally Posted by Erzulis Boat
In many impoverished areas of the planet, that would be the fanciest and safest bicycle in the entire village. Perfectly safe to ride. Get a passport, and explore the world! It would do you good.
Having worked and toured underdeveloped nations I agree however, in this case this frame is dangerous as some of the highest bending stresses frames see are at the front of the top tube and down tube during panic breaking.
easyupbug is offline  
Old 01-08-24, 04:44 PM
  #30  
saarf
Jaco’s a jealous troll
 
Join Date: Aug 2011
Location: A Parallel Universe
Posts: 121

Bikes: COLNAGOS

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
Liked 23 Times in 10 Posts
Lo

Looks a funny place for a impact while riding , maybe something fell on it .
saarf is offline  
Old 01-08-24, 05:43 PM
  #31  
shelbyfv
Expired Member
 
shelbyfv's Avatar
 
Join Date: Jun 2007
Location: TN
Posts: 11,557
Mentioned: 41 Post(s)
Tagged: 0 Thread(s)
Quoted: 3678 Post(s)
Liked 5,442 Times in 2,765 Posts
I wouldn't buy it, nor would I find it interesting enough to start a thread.
shelbyfv is offline  
Old 01-08-24, 05:54 PM
  #32  
OldTryGuy
Senior Member
 
Join Date: Jun 2013
Location: SW Fl.
Posts: 5,619

Bikes: Day6 Semi Recumbent "FIREBALL", 1981 Custom Touring Paramount, 1983 Road Paramount, 2013 Giant Propel Advanced SL3, 2018 Specialized Red Roubaix Expert mech., 2002 Magna 7sp hybrid, 1976 Bassett Racing 45sp Cruiser

Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 1069 Post(s)
Liked 788 Times in 505 Posts
Originally Posted by Jicafold
.........................

I've straightened stays and frame tubes with >>>>

https://www.parktool.com/en-us/produ...aightener-ss-1
OldTryGuy is offline  
Old 01-08-24, 06:02 PM
  #33  
saarf
Jaco’s a jealous troll
 
Join Date: Aug 2011
Location: A Parallel Universe
Posts: 121

Bikes: COLNAGOS

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
Liked 23 Times in 10 Posts
Originally Posted by shelbyfv
I wouldn't buy it, nor would I find it interesting enough to start a thread.
is that how you expired?
saarf is offline  
Likes For saarf:
Old 01-08-24, 06:42 PM
  #34  
veganbikes
Clark W. Griswold
 
Join Date: Mar 2014
Location: ,location, location
Posts: 13,543

Bikes: Foundry Chilkoot Ti W/Ultegra Di2, Salsa Timberjack Ti, Cinelli Mash Work RandoCross Fun Time Machine, 1x9 XT Parts Hybrid, Co-Motion Cascadia, Specialized Langster, Phil Wood Apple VeloXS Frame (w/DA 7400), R+M Supercharger2 Rohloff, Habanero Ti 26

Mentioned: 54 Post(s)
Tagged: 0 Thread(s)
Quoted: 4361 Post(s)
Liked 4,002 Times in 2,671 Posts
Damage like that throws up more red flags than a Soviet parade.

Nobody should ride it and the only reason to purchase is if the price is super low and the other components are in decent enough shape but given that massive dent I have to wonder about everything. Plus it is a pretty low initial cost single speed bike maybe better than some of the other stuff of the time but nothing so valuable it is worth spending much on it. Y
veganbikes is offline  
Old 01-08-24, 06:45 PM
  #35  
mrv 
buy my bikes
 
mrv's Avatar
 
Join Date: Jun 2014
Location: Michigan
Posts: 1,802

Bikes: my very own customized GUNNAR CrossHairs

Mentioned: 19 Post(s)
Tagged: 0 Thread(s)
Quoted: 519 Post(s)
Liked 429 Times in 249 Posts
if one of my fren-emies gave it to me for free, I'd probably try to roll the dent out, then set up some blocks on a level-ish basement floor and apply copious evenly distributed pressure to convince myself I've got it kind of aligned.
and / or take it and a bag of coffee beans to my LBS on a slow winter day and see if the owner will do an in house tool loan. (last time i mentioned bringing a mix-6 pack, but he said he's trying to get back into cycling shape - he and his family had a rough go of things with a very sick kid and The Covid Times....)

cheers!
mrv is offline  
Old 01-08-24, 07:07 PM
  #36  
SoSmellyAir
Method to My Madness
 
Join Date: Nov 2020
Location: Orange County, California
Posts: 3,665

Bikes: Trek FX 2, Cannondale Synapse, Cannondale CAAD4, Santa Cruz Stigmata GRX

Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 1949 Post(s)
Liked 1,474 Times in 1,021 Posts
Originally Posted by Iride01
... But if it was my bike and I didn't have the means to easily afford another bike, I'd ride it. Probably not at 50 - 60 mph going down a mountain side. ...
Maybe OK to ride gently in a circle in whichever direction avoids further bending the top tube. So, like NASCAR, but much, much slower.

I am waiting for LarrySellerz to chime in on how he races others while riding frames bent much worse than shown above.
SoSmellyAir is offline  
Likes For SoSmellyAir:
Old 01-09-24, 05:35 AM
  #37  
wheelreason
Senior Member
 
Join Date: Aug 2009
Posts: 1,820
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 505 Post(s)
Liked 638 Times in 377 Posts
3rd world countries? Park your self at the base of the Williamburg or 59th st bridge, and you'll see a bunch that look worse ridden daily. That was Bianchi's single speed steel gravel bike before there was such a thing. We had a couple in the rental fleet, you are not killing that thing, totally safe to ride.
wheelreason is offline  
Likes For wheelreason:
Old 01-09-24, 06:49 AM
  #38  
indyfabz
Senior Member
 
indyfabz's Avatar
 
Join Date: Jan 2010
Posts: 39,257
Mentioned: 211 Post(s)
Tagged: 1 Thread(s)
Quoted: 18424 Post(s)
Liked 15,582 Times in 7,337 Posts
Originally Posted by saarf
Lo

Looks a funny place for a impact while riding , maybe something fell on it .
Could also be from someone prying off a Kryptonite lick with a pole.

Decades ago, the dad of a friend used to own a LBS in Philly. Every once in a while, someone would come in trying to sell a used bike. If it had a certain type of damage that was suggestive of a lock being pried off, he wouldn't by it.
indyfabz is online now  
Likes For indyfabz:
Old 01-09-24, 07:54 AM
  #39  
Reflector Guy
Senior Member
 
Reflector Guy's Avatar
 
Join Date: Jul 2020
Location: Chicago
Posts: 1,341

Bikes: Bianchi Infinito XE, Via Nirone 7, GT Aggressor Pro

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 599 Post(s)
Liked 1,271 Times in 588 Posts
Originally Posted by indyfabz
Could also be from someone prying off a Kryptonite lick with a pole.
Maybe someone was using the bike as the pry bar! The bike won.... But just barely.
Reflector Guy is offline  
Old 01-09-24, 08:18 AM
  #40  
ofajen
Cheerfully low end
 
ofajen's Avatar
 
Join Date: Jun 2020
Posts: 1,978
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 646 Post(s)
Liked 1,044 Times in 667 Posts
Originally Posted by wheelreason
That was Bianchi's single speed steel gravel bike before there was such a thing. We had a couple in the rental fleet, you are not killing that thing, totally safe to ride.
Yeah I was thinking, first, it’s maybe just tall enough for me and, second, this is just the sort of frame I’d like to ride on our trails. The top tube doesn’t look that compromised, so yeah I’d ride it if I could get it cheap.

Otto
ofajen is offline  
Old 01-09-24, 08:26 AM
  #41  
Bald Paul
Senior Member
 
Bald Paul's Avatar
 
Join Date: Sep 2017
Location: Upstate SC
Posts: 1,709
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 826 Post(s)
Liked 1,659 Times in 784 Posts
I guess it all depends on the selling price. If it were cheap enough, I'd buy it for parts. I mean, the air in the tires still looks good.
Bald Paul is offline  
Old 01-09-24, 09:04 AM
  #42  
staehpj1
Senior Member
 
staehpj1's Avatar
 
Join Date: Aug 2006
Location: Tallahassee, FL
Posts: 11,868
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 1251 Post(s)
Liked 756 Times in 561 Posts
Great for parts. Great as an on campus beater. Wouldn't pay much for it. If used as an on campus beater, I might try to jack some of the bend out, but leave the dent in. If that was a failure then it might become a parts bike. These days I wouldn't have any use for it as either, but I can see where someone would.

Edit to add:
If this bike was in my current fleet, I'd donate it to the coop. They would likely use it as a parts bike to build up a nice bike for someone in the local homeless community and the frame would likely be scrapped.

Last edited by staehpj1; 01-09-24 at 09:21 AM.
staehpj1 is offline  
Likes For staehpj1:
Old 01-09-24, 10:19 AM
  #43  
LarrySellerz
Senior Member
 
Join Date: Mar 2021
Posts: 1,995
Mentioned: 24 Post(s)
Tagged: 0 Thread(s)
Quoted: 2700 Post(s)
Liked 486 Times in 351 Posts
Originally Posted by SoSmellyAir

I am waiting for LarrySellerz to chime .
looks like steel, it will just yield more instead of breaking, if it rides straight it’s probably fine.

what would you guys do to fix it? I don’t like the beating it straight suggestion and don’t think welding it for strength would improve the bike

also the location of the dent is sideways so it’s not like it has a tendency to crumple, the triangle is not compromised. It was probably hit by a car or something

Last edited by LarrySellerz; 01-09-24 at 10:32 AM.
LarrySellerz is offline  
Old 01-09-24, 10:29 AM
  #44  
wheelreason
Senior Member
 
Join Date: Aug 2009
Posts: 1,820
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 505 Post(s)
Liked 638 Times in 377 Posts
Originally Posted by saarf
Lo

Looks a funny place for a impact while riding , maybe something fell on it .
Bent while opening the Kryptonite.
wheelreason is offline  
Likes For wheelreason:
Old 01-09-24, 12:30 PM
  #45  
indyfabz
Senior Member
 
indyfabz's Avatar
 
Join Date: Jan 2010
Posts: 39,257
Mentioned: 211 Post(s)
Tagged: 1 Thread(s)
Quoted: 18424 Post(s)
Liked 15,582 Times in 7,337 Posts
Originally Posted by LarrySellerz

what would you guys do to fix it?
I’d fix that (top) tube with tape and a nitrile glove and then start a thread asking how long it will last.
indyfabz is online now  
Likes For indyfabz:
Old 01-09-24, 12:44 PM
  #46  
wheelreason
Senior Member
 
Join Date: Aug 2009
Posts: 1,820
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 505 Post(s)
Liked 638 Times in 377 Posts
Originally Posted by indyfabz
I’d fix that (top) tube with tape and a nitrile glove and then start a thread asking how long it will last.
Or goop and zip ties...
wheelreason is offline  
Old 01-09-24, 01:12 PM
  #47  
79pmooney
Senior Member
 
79pmooney's Avatar
 
Join Date: Oct 2014
Location: Portland, OR
Posts: 12,909

Bikes: (2) ti TiCycles, 2007 w/ triple and 2011 fixed, 1979 Peter Mooney, ~1983 Trek 420 now fixed and ~1973 Raleigh Carlton Competition gravel grinder

Mentioned: 129 Post(s)
Tagged: 0 Thread(s)
Quoted: 4806 Post(s)
Liked 3,932 Times in 2,557 Posts
My first though - 2 feet of quality 1x2 wood and some strong waxed or tarred sailor's marlin and quality whipping close the the seat and head lugs and on either side of the dent and that bike would ride just fine for the next 10 years. (That's stuff I always have on hand as a one time sailor. There are probably a hundred other ways just as cheap and easy to accomplish the same.) Repeat and ride another 10. And if this is a city bike, you've saved an easy pound. No U-lock required. The lightest cable out there will do just fine.
79pmooney is offline  
Likes For 79pmooney:
Old 01-09-24, 03:56 PM
  #48  
Pratt
Senior Member
 
Join Date: Aug 2019
Posts: 1,116
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 417 Post(s)
Liked 498 Times in 295 Posts
My standard response to "do you think this is safe?" is, "If you have to ask..."
However, if it had a S&S coupler there it would probably be fine. Similarly, I would bet a good welder could patch/replace/splint/etc. and make it safe if not svelte.
Pratt is offline  
Old 01-09-24, 06:55 PM
  #49  
wheelreason
Senior Member
 
Join Date: Aug 2009
Posts: 1,820
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 505 Post(s)
Liked 638 Times in 377 Posts
Originally Posted by 79pmooney
My first though - 2 feet of quality 1x2 wood and some strong waxed or tarred sailor's marlin and quality whipping close the the seat and head lugs and on either side of the dent and that bike would ride just fine for the next 10 years. (That's stuff I always have on hand as a one time sailor. There are probably a hundred other ways just as cheap and easy to accomplish the same.) Repeat and ride another 10. And if this is a city bike, you've saved an easy pound. No U-lock required. The lightest cable out there will do just fine.
Or a monkey's fist... (no lugs), sailor or Sailor?
wheelreason is offline  
Old 01-09-24, 07:13 PM
  #50  
ScottCommutes
Senior Member
 
Join Date: Oct 2023
Location: New Jersey
Posts: 571
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 366 Post(s)
Liked 274 Times in 175 Posts
Just starting to look broken in.
ScottCommutes is offline  


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.