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puppypilgrim 04-28-09 11:00 AM

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.


prathmann 04-28-09 11:12 AM

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?

puppypilgrim 04-28-09 11:19 AM

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).

puppypilgrim 04-28-09 11:35 AM

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.

Raxel 04-30-09 12:22 AM

What about using an eccentric bottom bracket shell such as trickstuff?
They look good except for price tag.. :[

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