Sprung
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Sprung
Postby elk » Fri Nov 28, 2008 5:43 pm
This is a Barb . Built in Elizabeth St Melb. by Finlay Brothers . They also sold and assembled BSA motorcycles up until the 50's or 60's .
It uses flattened rear forks as a kind of '' flex arm '' . The tubing for them was patented by Accles and Pollock in the mid to late 30's . The cast alloy shackle at the top of the stays has an oil hole and is smooth as . It rides smoothly too .
This one was a little sad when I found it but there were some specks of paint to go by . The original westwood rims were kaput so I replaced them . Apart from the seat tube and saddle all the other parts are original(as I found it) .
The father of a friend used to ride one when they were new and reckons they were a great bike . The only problem was that the rear forks would crack due to constant flexing . That's why you don't see many of these around and why I don't ride it much .
Hope it's of interest ,
Jon
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Postby brauluver » Fri Nov 28, 2008 6:03 pm
I wouldn't feel to safe riding it though.
top job on the resto as well, that paint work detail on the forks and rims is superb.
- il padrone
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Postby il padrone » Fri Nov 28, 2008 6:46 pm
There's enough people on here with old 1930s, 40s, 50s single speed road bikes that we ought to get a group ride happening. I'm in Melbourne, how many others are? Want to set up a classic bike ride some time?
Last September a few of us got together for the Russell Mockridge Memorial Ride, but it was only a little 2 km pootle to a minute's silence. I'd like to do a longer ride, maybe 50-60kms, out in the country somewhere. Something like l'eroica even, which didn't happen this year.
Any takers?
"An unjustified and unethical imposition on a healthy activity."
- il padrone
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Postby il padrone » Fri Nov 28, 2008 9:50 pm
From the Farren Collection. Dual suspension is not all that new , but with solid tyres I guess they needed something.
"An unjustified and unethical imposition on a healthy activity."
- il padrone
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Postby il padrone » Fri Nov 28, 2008 11:49 pm
In keeping with the 'Bicycle Emporium' style of their collection.
"An unjustified and unethical imposition on a healthy activity."
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Postby elk » Sat Nov 29, 2008 1:42 pm
Makes my lot look rather sad in comparison . I know the Farrens have at least a couple of sprung Barbs too . There is a sprung Barb register . Only 13 on it so far .
If you look through the patents for bike suspension they are few and far between until the 70's/ 80's . Then there's heaps of them .
As for the ride suggested by Il Padrone , I reckon it's a good idea but that sort of distance is beyond me for a while due to an exchange involving a Matchless motorcycle , a wallaby and myself .
- il padrone
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Postby il padrone » Sat Nov 29, 2008 6:55 pm
I was actually thinking of sometime early next year, maybe February. I'm busy till then - work, Chrissie, and holiday trip. So you'd have time to recuperateelk wrote:As for the ride suggested by Il Padrone , I reckon it's a good idea but that sort of distance is beyond me for a while due to an exchange involving a Matchless motorcycle , a wallaby and myself .
Hope you're OK??
"An unjustified and unethical imposition on a healthy activity."
- WyvernRH
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Postby WyvernRH » Sun Nov 30, 2008 6:41 pm
Just got to say that is one very cool bicycle and so nicely restored... top job!elk wrote:Thanks ,
Just one more of the nice Melbourne made shackle .
/barb/P1010002.jpg[/img]
This has to be about the only bicycle I can think of that makes a Hetchins curly look passe
Cheers
Richard
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- singlespeedscott
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Postby singlespeedscott » Wed Dec 03, 2008 10:08 pm
Ah John Castellano (of Ibis mtb fame) (http://www.castellanodesigns.com/fango.html) makes a softail mountain bike with flattened stay's out of "gasp" aluminium and it seems to work OK.MichaelB wrote:Brilliant. However nice and simple the idea is, any engineer could quickly tell you it wasn't going to last
It would be interesting to make a modern version of that that would last though Would be an interesting project...
- Mulger bill
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Postby Mulger bill » Thu Dec 04, 2008 12:28 am
Cannondale used a similar concept in CF for their Scalpel range of race MTBs.
Nothing truly new is there?
Shaun
London Boy 29/12/2011
- il padrone
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Postby il padrone » Thu Dec 04, 2008 12:31 am
Whooaah!singlespeedscott wrote:Ah John Castellano (of Ibis mtb fame) (http://www.castellanodesigns.com/fango.html) makes a softail mountain bike with flattened stay's out of "gasp" aluminium and it seems to work OK.MichaelB wrote:Brilliant. However nice and simple the idea is, any engineer could quickly tell you it wasn't going to last
It would be interesting to make a modern version of that that would last though Would be an interesting project...
I'd reckon that would be a good idea out of steel, or even better, titanium. I think one US top-line MTB manufacturer did a titanium frame in the late 90s that had no pivot or shock, but had good suspension from the frame design flexing vertically.
But to do it in aluminium is asking for trouble! Aluminium doesn't have any real bending tolerance, in contrast to steel. Fatigue begins with any bending. action. That's why alloy frames are built so rigid - to prevent flex.
"An unjustified and unethical imposition on a healthy activity."
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Re: Sprung
Postby DavidWKimber » Thu Aug 11, 2011 9:41 pm
REgards
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Re: Sprung
Postby Bobmatthews » Fri Nov 30, 2012 10:26 am
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Re: Sprung
Postby iestyn » Fri Nov 30, 2012 4:19 pm
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