eBay and Craigslist finds

Cracked just above the dropouts on both seat stays. Apparently, the picture wasn't really that clear so I don't know.

I'd have got in trouble for buying it anyway but I was looking forward to building it up.

hmm sounds odd. Could have offered to take it anyway for the cost of postage then worst case scenario you'd have a 1 inch threadless fork :)

Done.

If it's a Pre-Cursa it's going to be a 1 1/8" steerer though isn't it?

Looks like a very early one. Before the pre cursa. Also looks 1 inch but hard to tell

You might be right. Just like old times...

This is the photo he sent of the cracks:

It looks to me in that photo like the entire DS dropout is at an angle. If that is the case I think the whole thing is a write-off. Who does alloy frame repairs?

For the quality of the frame it's hardly worth it surely?

Depends on the cost. It's basically a free frame so if I can spend <£100 on it it's still good value.

I don't think I'd bother repairing it personally... I kinda assumed it was one inch as it looks verry similar to a frameset I have. But you're right, could be 1 1/8

If it was steel, sure. You'd kinda have faith in the repair holding up

I want to have a proper look at the damage first anyway because the guy selling it isn't a bike guy.

I know you don't have to be to diagnose a crack but it might not be that bad. If it is, sell the forks, sell the chainset and BB, money back, no harm done.

yeah exactly!

I'll get an early dibs on the forks if 1inch and you dont want ;)

Noted. Looks from the chips in the picture like they might be alloy though - still interested?

Yeah, if that's ok. I'm collecting 1inch forks at the moment

So much want...

Hey. Pls can I get 2nd on those forks if 1"? i've got an old Dolan I can reunite them with

Bob Jackson MTB £100
http://www.ebay.co.uk/itm/332181183649

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Cinelli MTB
http://www.ebay.com/itm/222472088321

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What is the deal. Can a guy who does aluminium Welding not just fix it though.
Or is aluminium welding less strong than welding steel?

Alu welds need heat treating or left for quite a while to strengthen I think

Depends on the type of Alu and how it was made to begin with tbh-the heat from re-powdercoating after a repair would be adequate treatment for some frames depending on the composition of the alloy. A good aluminium welder/machinist would be able to give a good idea.

Ah I see, thanks for that. I always just thought cracked or dented alu frames were a write off, with repairs likely to fail.

Cause I mean they make aeroplanes out of it, so surly a dude who knows what hes doing could sort it out. Unless the aluminium in bikes is purposefully unhelpful in that regard.

I had an aerospace fabricator sort out an old alu frame of mine before, did a cracking job!

From my own research as a general rule it's just not economic to do a repair unless it's something special or you have access to the expertise in house. The safety aspect of will it/won't it fail is also something that is a turn-off for most people, and again, a lot of alloys won't stand up to a repair anyway just because of the lower quality of the metal but there's new welding rods that are actually far stronger than the original material-I think they're made by Aluweld or something.

Places like this one certainly seem to be pretty sure about their abilities to do it-I don't imagine it's something they'd take on if they were worried about customers coming back with busted teeth a few weeks later. https://carrswelding.co.uk/repairs/cycling/

cracking job

Waheyy. Yeah, I think the welder dude I did a work experience with at my firmed uni is certified to weld aircraft so hopefully will be in the clear for the next four years.