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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 01-30-06, 06:56 PM   #1
BeantownFixed
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40x16 and need more gear?

I know I'm showing my ignorance here but here goes.....I currently am running 40x16 on an old schwinn build up. I feel like on the smallest downhill my rpms are through the roof and its relatively easy to commute around. Should I change the chain ring or the cog? Is there a difference in cost etc.? If I change one or the other do I need to get a new chain?
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Old 01-30-06, 07:02 PM   #2
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you can get a smaller cog (cheaper) and you'd then have to remove links from the chain (no cost). try a 13 tooth or somethin?
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Old 01-30-06, 07:05 PM   #3
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if you change the chainring it'll be a bit more expensive. and you'll need more links for your chain. where as with a simple cog change... about one or two teeth smaller... you'll do the same but spend less as you can change your chain tension in the dropouts.
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Old 01-30-06, 07:08 PM   #4
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+1 swap your cogg

BostonFixed, do you have amnesia or something?
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Old 01-30-06, 07:35 PM   #5
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I'm not BostonFixed and no i don't have amnesia.Why?
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Old 01-30-06, 07:57 PM   #6
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it's just that there is a user named BostonFixed. No big deal. Welcome!
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Old 01-30-06, 08:00 PM   #7
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take a look at this chart: http://www.i1.net/~dwolfe/gerz/


It will help you to find what gearing you want to go with ...

I am running a very similar gear to you (40x15) and I like it alot.

I originally had 52x14, then I tried 40x14, and then finally 40x15 and that was the one !

be warned, each tooth in the cog is like equal to 3 teeth in the front ... so changing by only 1 tooth at a time is my suggestion.
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Old 01-30-06, 08:01 PM   #8
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!!!
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Old 01-31-06, 03:17 PM   #9
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Thanks for the info.
I'm going to try and go with a 14 cog
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Old 01-31-06, 04:07 PM   #10
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for some people the 16 cog is too low, for some is too high.

Cogs are cheap, good desicion
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Old 01-31-06, 04:13 PM   #11
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agree with all above, the cog is the cheaper route. You can find cheap 3/32 and 1/8 chainrings (closeouts/bmx) but you'll have to add links or get a new chain. If your drivetrain is pretty new or doesn't show too much wear, you should be able to get by with just a cog change. If things are pretty worn, then you may have to buy new chain,ring and cog. I personally like running more teeth in my cog and a bigger ring just so I can have more teeth on my chain, but you may be requiring the added clearance of the 40/15 or 13 setup. I currently run a 48/18 in flat old Houston. The gearing's served me well for commuting and on metric centuries with our meager hills outside of town. If you're running fixed/brakeless you may want an odd numbered cog to get more skip/skid patches on the tire. just my two pence.

good luck to you.
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