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Can this kids bike ...
 

Can this kids bike be safely welded up?

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[#13535634]

https://www.pinkbike.com/buysell/4183578/

Can this be safely welded up? If so who would you get to do it in or near Nottingham?

I'm tempted to get this for my son who is rapidly outgrowing his 20 inch wheel bike. 

Good idea/ bad idea?


 
Posted : 21/05/2026 9:47 am
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Is the chainstay steel?

And the seat stay allo?

Either way seems like a lot for a completely broken frame.

 


 
Posted : 21/05/2026 10:13 am
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Suitable for the skip only!

100% it will be aluminium so no chance of welding. And even it it were steal that break is far from clean.


 
Posted : 21/05/2026 10:18 am
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Totally fixable but not worth it unless you know a fabrication place well enough to be paying under mate's rates. 


 
Posted : 21/05/2026 10:37 am
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No. Waste of money, will need more time and expertise than it's worth. Probably 6000 series heat treated and will need post weld heat treatment. 

Or, bodge it with adhesive and carbon fibre wrap at home and keep an eye on it (I wouldn't ... )


 
Posted : 21/05/2026 10:47 am
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Children grow so quickly (especially in your case!) it’s sometimes better to get a good quality new bike?

Saracen and Ridgeback have some excellent models, I wouldn’t bother with the extra weight and servicing complications of suspension yet.


 
Posted : 21/05/2026 11:35 am
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That appears to be advertised as a working rear shock and front triangle "if required". Maybe a rear triangle could be obtained elsewhere (?).


 
Posted : 21/05/2026 12:32 pm
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Your son. No way. 

Somebody else's son. Yeah absolutely!  


 
Posted : 21/05/2026 12:40 pm
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I wouldn't attempt to repair that and I've been a welder since I left school (just over 30 years ago). Its definitely possible to but controlling the distortion and shrinkage will be extremely difficult without a proper jig to keep everything in place while its cooling down afterwards. Aluminium frame would also require heat treatment as the area around the welds ( heat affected zone) will be weaker than the rest of the frame and likely to crack


 
Posted : 21/05/2026 12:53 pm
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Oh well thanks for the advice. I'll give up on it 🥺 

Your son. No way. 

 

Somebody else's son. Yeah absolutely!  

Yes exactly. 

Or, bodge it with adhesive and carbon fibre wrap at home and keep an eye on it (I wouldn't ... )

I did think about that, but had decided against it.

I wouldn't attempt to repair that and I've been a welder since I left school (just over 30 years ago). Its definitely possible to but controlling the distortion and shrinkage will be extremely difficult without a proper jig to keep everything in place while its cooling down afterwards. Aluminium frame would also require heat treatment as the area around the welds ( heat affected zone) will be weaker than the rest of the frame and likely to crack

Thanks for the experienced answer. 


 
Posted : 21/05/2026 1:22 pm