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 Post subject: Cracked? Really????????
PostPosted: Tue Sep 25, 2018 2:04 pm 
Retro Guru

Joined: Tue Aug 21, 2018 3:43 pm
Posts: 258
Location: Cambridgeshire - flatlands (the horror, the horror)
I have been looking for a medium COTIC frame to build up. And this came onto ebay today.


https://www.ebay.co.uk/itm/Cotic-Soul-f ... SwclVbqAkw


Note the position of the ‘crack’. AND WELDED BRACES???!!!!

Said ‘crack’ seems to correspond almost exactly to the appearance of the kind of hacksaw gap which would appear should a frame be hacked through to release it from a lock. Of course, top tubes always crack here, NEVER at the junction of TT and head tube ... (!!!?!! Wtf).

Anyone recognise this frame...........?


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PostPosted: Tue Sep 25, 2018 3:33 pm 
Lincs, East and South Yorks Deputy AEC
Lincs, East and South Yorks Deputy AEC
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Joined: Sun Apr 08, 2012 11:56 am
Posts: 1754
Location: Doncaster
Who on earth would place a bid on this !!!


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 Post subject: Re:
PostPosted: Tue Sep 25, 2018 4:19 pm 
Retro Guru

Joined: Tue Aug 21, 2018 3:43 pm
Posts: 258
Location: Cambridgeshire - flatlands (the horror, the horror)
Indeed - should read

‘For sale - several sections of Reynolds 853 tubing, currently welded together in the shape of a bicycle frame...’


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 Post subject: Re:
PostPosted: Tue Sep 25, 2018 4:47 pm 
Devout Dirtbag
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Joined: Tue Sep 18, 2018 6:02 am
Posts: 137
Location: Hull East Yorkshire
Quote:
Could be repaired by someone with the correct skills and equipment


Yeah... even Penn & Teller would struggle with that... :roll:


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PostPosted: Tue Sep 25, 2018 9:30 pm 
Lincs, East and South Yorks Deputy AEC
Lincs, East and South Yorks Deputy AEC
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Joined: Sun Apr 08, 2012 11:56 am
Posts: 1754
Location: Doncaster
Hheehehehe well put.


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 Post subject: Re:
PostPosted: Tue Sep 25, 2018 11:17 pm 
Gold Trader
Gold Trader
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Joined: Fri Jan 23, 2009 2:30 pm
Posts: 14926
Location: Surrey
Someone has bid on it????


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PostPosted: Wed Sep 26, 2018 12:34 am 
Dirt Disciple

Joined: Fri Mar 17, 2017 2:01 pm
Posts: 78
That's definitely a crack not a cut.

A toptube replacement is only £85 from Bob Jackson so with the current bid that represents a decent total outlay for a Cotic Soul (completed items on ebay show plenty have sold for over £200).
It's also probably the easiest tube to replace (easy access to remove old top tube and clean up the headtube and seat tube, new tube only needs a simple notch on either end, should slip in place pretty easily) so "Could be repaired by someone with the correct skills and equipment" is pretty accurate.

I have a top tube sitting in my garage that I cut out of a damaged frame that'd maybe fit but I only have a basic stick welder. If I had a tig machine I could be tempted.


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 Post subject: Re:
PostPosted: Wed Sep 26, 2018 7:55 am 
Gold Trader
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Joined: Fri Jan 23, 2009 2:30 pm
Posts: 14926
Location: Surrey
I was wondering whether it was actually a crack, as is expect to see stress marks where it had been prized open to get the lock through.


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 Post subject: Re:
PostPosted: Wed Sep 26, 2018 11:28 am 
retrobike rider / Gold Trader
retrobike rider / Gold Trader
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Joined: Fri Feb 06, 2009 11:13 pm
Posts: 10867
Location: Skipton
Only worth bothering with if you fancy trying frame building/fixing yourself.


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 Post subject: Re:
PostPosted: Wed Sep 26, 2018 12:44 pm 
Retro Guru

Joined: Tue Aug 21, 2018 3:43 pm
Posts: 258
Location: Cambridgeshire - flatlands (the horror, the horror)
....well I did communicate pretty strongly in the post title and first post that I was sceptical about this being a crack. I hope I didn’t jump to conclusions too quickly but I have never seen a crack which simply occurs mid top tube in steel - OK, times when the bars have flipped around and dented the TT and the dent has then propagated a crack. Sure, weird spontaneous cracking in carbon frames ... but in 853 halfway along a TT, never in 853 in my experience but open to correction. Plenty of failures where there is a propagation point - bend, braze on, etc. And plenty of failures through poor brazing and welding at joints. Big chainstay failures, of course, particularly after damage from chainsuck. And I have seen tubes cut by a hacksaw and then prised part to get a U Lock hasp through, leaving no visible damage to the tubes other than the hacksaw cut....

Best one I have experienced (other than a friend who came back to his bike to find someone cutting through the TT and the thief saying F off it’s my bike now....!!) was Jo Burt, who had the drops and shifters allen-key-lifted from his bike, only to be helping Russell in his shop the next day, and having a guy come in with said cable-dangling set up and trying to sell it to him....that was ‘interesting’ to say the least. On that occasion the police WERE interested.


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