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PostPosted: Thu Sep 06, 2007 3:31 pm 
Old School Grand Master
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Joined: Tue Jul 05, 2005 3:14 pm
Posts: 13398
Location: Warwick
Is there one?


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PostPosted: Thu Sep 06, 2007 3:35 pm 
Retro Guru
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Joined: Fri Jan 05, 2007 12:14 am
Posts: 1321
Location: Sunny? Devon
Colour is the usual one, unless it's anodized, Ti is that nice grey colour. Aluminium will be more.... silver :roll:


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PostPosted: Thu Sep 06, 2007 3:53 pm 
B.o.T.M. Winner / Feature Bike
B.o.T.M. Winner / Feature Bike
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Joined: Tue Dec 13, 2005 3:26 pm
Posts: 6191
Location: Tilting at windmills and shouting at the rain.
Can't believe I'm going to say this, but I got this snippet of info from the bitchfest that is STW:

But if you want to be sure, weigh the spring, then fill a suitable container to the rim with water, drop the spring in the water, and weigh the water that's displaced by the spring.

Divide the weight of the spring by the weight of the water, if you get a number around 4.5 then its ti


I'm off for a wash


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PostPosted: Thu Sep 06, 2007 4:02 pm 
Old School Grand Master
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Joined: Tue Jul 05, 2005 3:14 pm
Posts: 13398
Location: Warwick
in the displaced water?

:roll:


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PostPosted: Thu Sep 06, 2007 4:47 pm 
B.o.T.M. Winner / Feature Bike
B.o.T.M. Winner / Feature Bike
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Joined: Tue Dec 13, 2005 3:26 pm
Posts: 6191
Location: Tilting at windmills and shouting at the rain.
Eeeuuwww, that really sound dirty. I'm off to register www.washinmydisplacedwater.com, sure I'll get a decent number of hits from german scat fans


Last edited by pete_mcc on Thu Sep 06, 2007 5:04 pm, edited 1 time in total.

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PostPosted: Thu Sep 06, 2007 4:52 pm 
retrobike rider
retrobike rider
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Joined: Wed Jan 04, 2006 10:12 pm
Posts: 2993
Location: Northumberland
No very useful, but put it on a grinder, white sparks=ti :lol:


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PostPosted: Thu Sep 06, 2007 6:11 pm 
Retro Guru
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Joined: Thu Jul 12, 2007 8:19 am
Posts: 2037
Location: Swansea
Like for like Ti will ping and Al will feel dead in comparison :)


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PostPosted: Thu Sep 06, 2007 9:09 pm 
Old School Grand Master

Joined: Wed Jun 29, 2005 11:18 am
Posts: 15804
Location: near cwmcarn
http://www.bikepro.com/products/metals/hardness.shtml


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PostPosted: Thu Sep 06, 2007 9:35 pm 
Old School Grand Master
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Joined: Tue Jul 17, 2007 5:13 pm
Posts: 8178
Location: Tredavoe, Cornwall
Place frame of choice in damp shed and leave for about five years,
if its ti it will need a quick once over with pledge.
If its alloy it will need a good polishing with metal cleaner and a good buff to get rid of the oxidisation.
If its cromo it will need a dust pan and brush.
And if it is carbon it will need a skip because no matter how long you leave it it will still be a pile of crap!!!!

Sorry kestral owners.



Cheers,Al


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PostPosted: Fri Sep 07, 2007 1:38 pm 
Retro Guru
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Joined: Thu Jul 12, 2007 8:19 am
Posts: 2037
Location: Swansea
scant wrote:
http://www.bikepro.com/products/metals/hardness.shtml


I was assuming they didn't want to mash whatever it was to test it :lol:

If you don't mind scratching whatever it is get a steel nail and try and scratch whatever it is :shock: if its aluminium you'll be able to leave an indented scratch, if its Titanium it will just leave a brighter coloured scratch but won't dig into the metal :)

I love titanium frames but its a pig to work with as its so hard :? a work colleague was building his motorbike into a race replica so he had me duplicate anything that would unbolt with titanium versions :)

Trouble is since then anyone who wants titanium bits made up comes straight to me :?


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