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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 08-20-10, 09:25 AM   #1
AngryScientist 
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single speed cranksets (modified road cranks)

lets see some pictures of your converted road cranksets to single speed / fixed, single chainring.

i'm planning on buying a used ultegra 600 crankset, using the inner chainring with some single speed chainring bolts, there should be no technical issue with this, correct?
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Old 08-20-10, 09:48 AM   #2
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seems like a lot of cranks marketed for SSFG are pretty much road cranks
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Old 08-20-10, 10:02 AM   #3
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lets see some pictures of your converted road cranksets to single speed / fixed, single chainring.

i'm planning on buying a used ultegra 600 crankset, using the inner chainring with some single speed chainring bolts, there should be no technical issue with this, correct?
The only potential issue that I can see is having the correct BB spindle length to get a good chainline, but usually it works out pretty well with the stock BB and the chainring on the inside of the crankarm spider.
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Old 08-20-10, 12:49 PM   #4
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The one with obnoxious colors has yet to be stripped, I didn't paint it.
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Old 08-20-10, 01:07 PM   #5
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suntour cyclones work great. id buy another pair.

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Old 08-20-10, 01:13 PM   #6
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If its actually branded 600 Ultegra, you might want to shop it around a bit. That branding didnt last long and some one might want to spend a bit of money for it, and you would be able to make a profit. Just a thought.
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Old 08-20-10, 01:29 PM   #7
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i believe they are sugino glps. to me, they are nearly irreplaceable, but id let one set go with bottom bracket for $350!
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Old 08-21-10, 08:37 PM   #8
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suntour cyclones work great. id buy another pair.

man, you need to fix that chain tension
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Old 08-21-10, 08:39 PM   #9
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The chain tension is fine...
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Old 08-21-10, 09:12 PM   #10
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The forgings used for road and track cranks are usually identical; only the final machining determines which is which. A track/SS crank arm will not have a platform for an inner chainring and the spider should be counterbored to allow the chainring bolts to seat flush with the spider.
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Old 08-22-10, 07:19 PM   #11
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This is basically what I'm using now. Shimano Sante crank, with a Sugino 48T chainring.

I set it up with the chainring in the outer position so I had to get the closest BB (DA 7400 BB) that gives me an ok chainline.

Last edited by boostbutt; 08-22-10 at 07:22 PM.
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