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PostPosted: Mon Aug 06, 2007 3:46 am 
Old School Hero
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Joined: Thu Aug 24, 2006 3:53 am
Posts: 214
Location: 'berra
More as a 'public service notice' - this is where to look when buying a RC200 / RC300 frame - I've now got two broken ones :(

Here are pictures of both, both broken in the same place- on the join between rh chainstay and BB - my afair with the square tubes is over :(

I'm 72kg and try to ride 'light'... keep an eye out folks.

As a result I have a heap of Pace hardware to selll - see For Sale forum :-(


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PostPosted: Mon Aug 06, 2007 8:25 am 
retrobike rider / Gold Trader
retrobike rider / Gold Trader
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Joined: Sat Jan 27, 2007 10:35 pm
Posts: 8423
Location: The desolate flats of Cambridgeshire
:(

they look in a sorry state.


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 Post subject: Sad News
PostPosted: Mon Aug 06, 2007 2:26 pm 
North Wales Deputy AEC
North Wales Deputy AEC
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Joined: Sun Apr 30, 2006 12:50 am
Posts: 6218
I'm afraid it's pictures like these that reinforce my decision to only buy steel retro frames (two exceptions being a metal matrix M2 and an NOS Ally jobby).

Couldn't cope with the sense of inevitable 'loss'!

Mr K


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PostPosted: Mon Aug 06, 2007 10:54 pm 
98+ BoTM | BoTM | Gold | Rider
98+ BoTM | BoTM | Gold | Rider
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Joined: Thu Mar 23, 2006 12:48 am
Posts: 6648
Location: Kingdom of Ringlé
Ouch.. :cry:

Sorry to see this mate.. What's your next frame?


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PostPosted: Tue Aug 07, 2007 3:43 am 
Old School Hero
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Joined: Thu Aug 24, 2006 3:53 am
Posts: 214
Location: 'berra
Next frame?

Who knows - something Titanium- that'll last.....


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 Post subject: 200/300 cracks
PostPosted: Fri Aug 24, 2007 8:01 am 
Old School Grand Master
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Joined: Wed Aug 08, 2007 12:15 am
Posts: 7563
Location: North Yorkshire
All Ally rigid frames will do this in time/miles this was the thinking behind Raleighs MT frames, utilising steel lugs, as this is where the breaks occur at the welds, while still retaining the weight benefits of Alloy/MM/Ti. 853 still has to remain the prefered choice for mtbs, as it is stronger at the weld and no heavier than alloy .


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PostPosted: Fri Aug 24, 2007 6:41 pm 
Retro Guru

Joined: Fri Apr 28, 2006 8:42 pm
Posts: 783
Location: Brighton
Steel is an alloy. When you say Alloy you mean Aluminium.

Titanium and Steel have very long fatigue lifes and can normally only be killed by rot or one heck of a bash. Aluminium has a finite life. The M-Trax and Dynatech frames were steel or Titanium with one or two exotic exceptions so steel lugs wouldn't offer any additional life for these materials.

The reason for bonding these frames was that some materials become weakened by the heating involved in brazing and so have to be stronger near the joins. If there's no brazing there's no weakening and so a thinner gauge can be used nearer the ends of the tubes.

In terms of these Pace frames - they look fixable. It'll be ugly, but it can be repaired.


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PostPosted: Fri Aug 24, 2007 7:14 pm 
Retro Guru

Joined: Sun May 14, 2006 5:38 pm
Posts: 936
Location: Sussex
Nasty, very nasty...


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 Post subject: Dyna Tech
PostPosted: Fri Aug 24, 2007 8:27 pm 
Old School Grand Master
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Joined: Wed Aug 08, 2007 12:15 am
Posts: 7563
Location: North Yorkshire
terryhfs wrote:
Steel is an alloy. When you say Alloy you mean Aluminium.

Titanium and Steel have very long fatigue lifes and can normally only be killed by rot or one heck of a bash. Aluminium has a finite life. The M-Trax and Dynatech frames were steel or Titanium with one or two exotic exceptions so steel lugs wouldn't offer any additional life for these materials.



I have had several Aluminium tubed Dynatech frames and have one for sale at the moment. They did produce a lot of Aluminium versions, not just Steel and Ti.


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 Post subject: Re: Sad News
PostPosted: Sat Aug 25, 2007 10:37 am 
Old School Grand Master
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Joined: Sat May 20, 2006 2:56 pm
Posts: 4776
Location: No brakes? Way to commit soldier.
Bummer about the frames :( I hate it when bikes die.

mrkawasaki wrote:
I'm afraid it's pictures like these that reinforce my decision to only buy steel retro frames (two exceptions being a metal matrix M2 and an NOS Ally jobby).

Couldn't cope with the sense of inevitable 'loss'!

Mr K


You can't write off all aluminium frames on the basis of a couple of manufacturers who didn't get it right. There are plenty of broken steel frames aswell but people don't put up pics of these and say "I'm afraid it's pictures like these that reinforce my decision to only buy aluminium/titanium/carbon (delete as applicable) retro frames".

There are lots of great aluminium frames out there, why deny yourself the pleasure of owning one? :)


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