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Old 04-28-09, 11:00 AM   #1
puppypilgrim
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Where to buy 59T chainring?

I'm looking to either buy locally (in Vancouver, BC, Canada) or via internet, a 59T chainring that would fit my 2006 Dahon Helios.

Suggestions?
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Old 04-28-09, 11:12 AM   #2
prathmann
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Loose Screws has 58t and 60t rings, but I don't know about 59t. I presume you need to have the exact number to get a fixed-gear setup with vertical dropouts and no chain-tension adjustment. What's the bolt circle size on your Dahon?
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Old 04-28-09, 11:19 AM   #3
puppypilgrim
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Yes, the 59T x 16T is a magic gear ratio for the vertical dropouts. I do have a Surly Singleator chain tensioner if I need to do 60T.

I need to measure the BCD (stupid me to forgot to measure last night).
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Old 04-28-09, 11:35 AM   #4
puppypilgrim
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Got the wife to measure it while I'm at work. It's 130mm BCD. After more measuring, its not going to work since a 59T would rub against the chainstay. Back to the drawing board.

Last edited by puppypilgrim; 04-28-09 at 11:46 AM.
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Old 04-30-09, 12:22 AM   #5
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What about using an eccentric bottom bracket shell such as trickstuff?
They look good except for price tag.. :[

http://www.trickstuff.de/index.php?p=d116en1
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