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PostPosted: Wed Aug 21, 2013 10:12 am 
Old School Grand Master
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Joined: Fri Oct 14, 2011 8:41 pm
Posts: 8245
Location: Cumbria
The only EDCO cranks I can think of are the Competition ones......144 BCD and later 130 BCD IIRC.

That TA chainring sounds ideal :)

Shaun


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PostPosted: Wed Aug 21, 2013 10:52 am 
retrobike rider / Gold Trader
retrobike rider / Gold Trader
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Joined: Sat May 09, 2009 11:46 pm
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Location: East Riding of Yorkshire
Yeah, it's the early 144 BCD Competition cranks I have, so assuming the TA chainring is like this:

Image

I could only use it with T.A. cranks couldn't I?

I'll have a look for T.A. cranks, but would prefer to use the EDCO ones if possible.


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PostPosted: Wed Aug 21, 2013 4:24 pm 
Old School Grand Master
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Location: Cumbria
Biggest I remember back when I raced in the 70's was 57 for 144BCD....

Might be cheaper to buy some TA cranks.

Shaun


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PostPosted: Wed Aug 21, 2013 7:59 pm 
Dirt Disciple

Joined: Tue Aug 20, 2013 8:29 pm
Posts: 83
Hi, kingoffootball,
I feel Stronglite made similar cranks using T.A. rings.
My chainring is as picture but bigger. Still available.
Regards
silverlightning


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PostPosted: Thu Aug 22, 2013 8:02 pm 
rider | rBoTM Winner
rider | rBoTM Winner
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Joined: Fri Jan 25, 2008 1:42 pm
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Location: Wakefield, Yorkshire
TA and Stronglight 5-pin cranks (plus many steel ones) have the same bolt circle.


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PostPosted: Thu Aug 22, 2013 8:05 pm 
Gold Trader
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Joined: Wed May 20, 2009 1:29 pm
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Location: Manchester, UK
60t in 130bcd here:

http://www.ebay.co.uk/itm/bi-plus-DRIVE ... 1e7bddaba6

bit pricey though?


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PostPosted: Fri Sep 13, 2013 2:15 pm 
retrobike rider / Gold Trader
retrobike rider / Gold Trader
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Location: East Riding of Yorkshire
Well I found what I needed ....

Image

but it's a bit too pricey for me:

http://www.ebay.co.uk/itm/Nos-Campagnol ... 4176de2aab

I think I'm going to have to wait until the rest of the bike is built and see how the gearing is and work out whether I can find another solution (and indeed whether there's enough chainstay clearance if I find a slightly cheaper chainring)


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PostPosted: Fri Sep 13, 2013 2:16 pm 
retrobike rider / Gold Trader
retrobike rider / Gold Trader
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Dead Rats wrote:
60t in 130bcd here:

http://www.ebay.co.uk/itm/bi-plus-DRIVE ... 1e7bddaba6

bit pricey though?


I would probably be tempted at that price if it was silver, but I've only seen them in black and that will stand out like a sore thumb as the build is at the moment.


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PostPosted: Thu Mar 20, 2014 12:18 pm 
retrobike rider / Gold Trader
retrobike rider / Gold Trader
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Joined: Sat May 09, 2009 11:46 pm
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Location: East Riding of Yorkshire
Bump.

A 57-60T 144mm bcd ring might be worthwhile as a temporary measure, as the project is slowly nearing completion. I have a pair of 144mm Royce chainrings I could offer as possible part exchange.


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PostPosted: Mon Aug 04, 2014 10:26 pm 
retrobike rider / Gold Trader
retrobike rider / Gold Trader
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Joined: Sat May 09, 2009 11:46 pm
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Location: East Riding of Yorkshire
Still looking.


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