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While I was cycletouring in the Nederlands last year I had someone in a bike shop install a new kickstand, longer, stronger and more effective than the previous one. He didn't put anything at all between frame and kickstand and must have tightened it very hard! The previous kickstand, also one legged, had been installed by myself, with some rubber between chainstay and kickstand and - I am sure of this - no ill effects. The bike is a good (Dawes Supergalaxy, possibly Reynolds 631), but old (year 2000) touring machine with thousands of loaded miles. I am now doing my winter maintenance and have removed the kickstand to find the chainstay crushed, see pictures. Underneath, the crush is obvious (looks worse in the picture) and there is even a tiny hole. The above section is literally paint damage.

Am I right to think this the end of this bike? I happen to be building another touring bike at the moment but I was still planning to use this old friend for local trips and commuting. I guess now even this is not a good idea? Any advice welcome.

enter image description here

  • What is the frame made of? Steel? Aluminum? What sort of kickstand was this, a one-legged one or a two-legged one? – Daniel R Hicks Feb 6 '18 at 12:58
  • It seems to be a steel frame. A good metal worker should be able to repair and/or reinforce the area. Thar may not be cost-effective (depending on the cost of labor) but may be worth it if the bike has some special meaning for you. – Jahaziel Feb 6 '18 at 14:09
  • Seems implausible that the stand caused the concave depressions running in line with the stays - those were part if the original frame, right? So the actual damage is the smaller hard edged deformations? – Argenti Apparatus Feb 6 '18 at 14:36
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    Many older steel frames i have seen have a flat spot there specifically for the kickstand. Were positive this wasn't the case and has just been marred up more because of the lack of rubber between the new kickstand and frame? – Nate W Feb 6 '18 at 15:44
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    If this was crush damage, I'd expect to see matching damage on the top of the chainstays (there must have been some sort of plate to form the other side of the clamp) – Chris H Feb 6 '18 at 16:53
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The specific points of damage I'd really be worried about are the hard edged dents near the junction with the bottom bracket shell lugs (red rectangle in pic below). I think there is a high probability that cracks will form from those points.

enter image description here

  • Yes, I reckon the flats were there but stress was concentrated by a larger-than-designed-for kickstand plate. That would be consistent with the cosmetic damage on the top. – Chris H Feb 6 '18 at 19:57
  • Thanks for all comments and answers! But I can confirm those ´flat´areas were not there originally. I agree about cracks very possibly developing in the area highlighted. Taking into account all comments and my own opinion, I will keep riding the bike locally but obviously not for extended tours and I will keep an eye on it. I will probably get a frame builder to look at it at some point soon. – Pilar Feb 6 '18 at 21:04
  • The frame looks almost identical on the other chainstay. I don't use kickstands but I'm surprised that you have the same damage across both sides of the bike. Is that just how the chainstays are on that bike and the clamping isn't the whole story? – atlaz Feb 9 '18 at 11:23
  • @atlaz many kickstands use a pair of plates, one above and one below the chainstays. This would cause a symmetric pattern of damage. The force from the clamp would be much greater than the force from the weight on the kickstand, even if you somehow managed to sit on the bike with it on the stand – Chris H Feb 9 '18 at 12:50
  • Many frames have a flat part on the frame at that location specifically for a kickstand mount point. Maybe counter-intuitively if you did not the frame would be more prone to bending from the bottom plate of the kickstand because of the limited contact area. If you have absolutely no deformity on the top of the chainstay tubes I don't think that there is any cause for concern, though I'd probably spray paint the raw metal to prevent any surface decay that could eventually lead to failure. – markd Feb 13 '18 at 22:56
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It certainly looks like cracks in the steel , which is bad. When you say a "good" bicycle, I think $ ; heat treated Cr : Mo steel that has been brazed into lugs.This construction is difficult to repair ; A bicyclist specialist shop may be able to do it but it world be expensive. If the bicycle is not so good , welded plain steel , then almost any welding shop can fix it.

  • There really are no cracks in the steel but there is a very tiny hole, very easy to miss. I have already rubbed off the rust and painted area. I think the frame is Reynolds 631 (these day the bike looks a bit ´tatty´and it is covered with various stickers, in part in an attempt to cover make and other things that attract unwanted attention). – Pilar Feb 11 '18 at 12:04

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