Had a pretty gnarly crash into a sidewalk bollard – thankfully I should be all right, but I noticed my seat tube is dented. The seat tube material is Reynolds 853 – the rest of the bike is 631.
Should I be concerned? What can I do?
by sdk914
Had a pretty gnarly crash into a sidewalk bollard – thankfully I should be all right, but I noticed my seat tube is dented. The seat tube material is Reynolds 853 – the rest of the bike is 631.
Should I be concerned? What can I do?
by sdk914
10 Comments
Looks pretty bad. I’d be concerned about integrity of that
This is more dangerous than a bent top tube. It might just collapse under your weight, I wouldn’t ride that.
Dented? That thing is completely bent out of shape. DNR for me
Well, maybe you know the thing with the Coke-can. When perfectly undented, an adult can stand on top of it but has soon as there is a touch to the face of the cylinder, it collapses.
This is the same thing with your frame although it will not collapse as easily as the coke can. You can tray to get the tube back in shape by pushing a conical tipped rod with the outer diameter of the inner diameter-0.1mm of your seat tube into your seat tube but that will still be not perfect. Always remember that these bikes are designed to carry 110kg. The difference to your weight is the margin of safety you can stress 😛
You need to be concerned about the possibility of your bike folding underneath you and ending in hospital.
There’s a rule to this forum that if you have to ask don’t ride it. It’s a good rule.
PS sorry this crash happened! But better make sure there isn’t another where the dent is in you.
I would use it for quick trips around town. But not for training
Looks like a Fairlight? Shame but I wouldn’t ride that. They’re steel but they’re thin…
I don’t want a tube up my bum to be honest, that’s toast.
Even though steel is a very resilient material that can safely withstand quite a bit of damage before it causes concern I would call that one toast.
Too much damage over quite a long stretch on a part of the bike thats vital for overall structural integrity. Might possibly if you are careful be able to use it on an indoor trainer but personally I wouldn’t even risk that.
However trying to see the positives you just got a great excuse to buy yourself a new bike.
It might be the picture, but besides being dented, that also seems bent.
Just out of curiosity, how did you dent it in that spot? Did the seat tube catch the bollard while trying to swerve it?