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Old 06-29-13 | 03:38 PM
  #9  
sreten
Banned.
 
Joined: Feb 2013
Posts: 1,662
Likes: 1
From: Brighton UK

Bikes: 20" Folder, Road Bike

Hi,

I'm just asking a question rather than disagreeing with what has been said :

Assumption (front to back is right to left):
A front wheel prang ends up putting a lot of anticlockwise tension in
the top tube causing any failure to occur on the top near the headset.

Proposition :
This is opposite to the normal stresses on the tube for riding and bumps.
Except for heavy front braking, essentially a milder version of the prang,
but front braking can't cause the high stress inertia allows in a prang.

Question :
Am I missing something thinking it won't rapidly get worse ?

Disclaimer :
If the damage is actually as bad as it looks from the paint, I would
never trust it, but I have heard of paint making things look worse,
(i.e. the paint cracking below the elastic limits of the tubing).

rgds, sreten.

Last edited by sreten; 06-29-13 at 03:44 PM.
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