Thread: Cog advice...
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Old 02-20-07, 06:09 PM
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Brian Ratliff
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Location: Near Portland, OR
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Bikes: Three road bikes. Two track bikes.

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I have a Surly cog which seems pretty good. Some of the cheaper cogs seems to be offset a little so the chainline isn't perfect. I also found that a prime number of teeth on the cog (i.e. 13, 17, 19, 23) will enable you to use any chainwheel size without constantly wearing on a single patch or set of patches on tire (this is the "skid spot" that you'll hear about here).

As for gear ratio, I currently run a 48x17, though a 46x17 (roughly like the 42x16 you currently have) was good too.
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