Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

Anybody ever seen this before? (Frame Bending)

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

Anybody ever seen this before? (Frame Bending)

Old 10-14-16, 04:26 PM
  #1  
Lafayette134
Junior Member
Thread Starter
 
Join Date: Oct 2016
Posts: 17
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Anybody ever seen this before? (Frame Bending)

On my Del Rey, which is in otherwise swell shape, there is a strange twist in the top tube. What has happened, and what could happen here? Regards.
Attached Images
File Type: jpg
20161014_182216.jpg (92.3 KB, 179 views)
Lafayette134 is offline  
Old 10-14-16, 04:31 PM
  #2  
GamblerGORD53
Senior Member
 
Join Date: Apr 2010
Location: Elevation 666m Edmonton Canada
Posts: 1,294

Bikes: 2013 Custom SA5w / Rohloff Tourster

Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 622 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Somebody rode it into a car. >>>> Garbage time.
GamblerGORD53 is offline  
Old 10-14-16, 04:40 PM
  #3  
79pmooney
A Roadie Forever
 
79pmooney's Avatar
 
Join Date: Oct 2014
Location: Portland, OR
Posts: 6,573

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: 88 Post(s)
Tagged: 0 Thread(s)
Quoted: 1502 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
GamblerGord 53 is probably right. I'm guessing you picked this up used without fork? If so, that's because the fork looks worse. (It looks, as best I can tell, that the the lower lug is also tweaked. The front wheel and fork tips were probably pushed back most of a foot. The bending was probably split between the fork and top and down tubes.

I've done it. Wasn't a car but the end result was the same.

Ben
79pmooney is offline  
Old 10-14-16, 04:56 PM
  #4  
JohnDThompson 
Old fart
 
JohnDThompson's Avatar
 
Join Date: Nov 2004
Location: Appleton WI
Posts: 20,146

Bikes: Several, mostly not name brands.

Mentioned: 99 Post(s)
Tagged: 0 Thread(s)
Quoted: 1583 Post(s)
Likes: 0
Liked 1 Time in 1 Post
Originally Posted by GamblerGORD53 View Post
Somebody rode it into a car.
Or similar front-end collision.

>>>> Garbage time.
Not necessarily. The Del Ray has a steel frame, and as such could likely be ridden for many more decades without failing. That said, the damage has altered the geometry of the frame, effectively steepening the head angle. The fork may also have suffered damage, lessening the effective rake. Both these can change the steering characteristics, but possibly not enough to make the bike unpleasant to ride. If the OP is satisfied with how the bike performs in this condition, there's no compelling reason to rush to replace the bike.
JohnDThompson is offline  
Old 10-14-16, 05:04 PM
  #5  
Andrew R Stewart 
Senior Member
 
Andrew R Stewart's Avatar
 
Join Date: Feb 2012
Location: Rochester, NY
Posts: 11,372

Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Raleigh Pro, Trek Cycle Cross, Mongoose tomac ATB, GT Bravado ATB, JCP Folder

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1652 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Yes. And besides the bending there might also be a twist if the impact was off center. Check the fork too. While this damage can be aligned it's not worth it often. Andy
Andrew R Stewart is offline  
Old 10-14-16, 05:12 PM
  #6  
79pmooney
A Roadie Forever
 
79pmooney's Avatar
 
Join Date: Oct 2014
Location: Portland, OR
Posts: 6,573

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: 88 Post(s)
Tagged: 0 Thread(s)
Quoted: 1502 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
I trashed my Miyata for that level of damage. Didn't have to but I saw no reason to save it. (Except tI would have saved myself a bunch of money. The replacement rode so well that when it suffered the failure that brand was well known for, I had it repaired to the tune of a near half grand with paint.) I could have straightened the Miyata to ridable, perhaps shelling out $30 for a fork.

Ben
79pmooney is offline  
Old 10-17-16, 01:24 PM
  #7  
dbg
Si Senior
 
dbg's Avatar
 
Join Date: Nov 2004
Location: Naperville, Illinois
Posts: 2,669

Bikes: Too Numerous (not)

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 22 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Check the downtube. You might see some buckling marks there also. I wouldn't trust the frame. Everytime you gain big speed going down a long hill --you'll wonder how stable the front end is. Will the next bump cause the headtube to separate from top tube or downtube?? If that happens you will suffer bigly.
dbg is offline  

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

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.