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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 12-22-08, 05:30 PM   #1
theone29
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1/8" vs. 3/32' chain/freewheel/cog.

so i finally got my 09 rush hour. it comes with a 46x16 combo and i wanted to swap out the 16 for a 18 freewheel. Without knowing the current chainring/cog setup is a 1/8", i went ahead and bought a 18t 3/32" freewheel cog to replace. Can i still use it?

http://farm4.static.flickr.com/3219/...0a2ea728_b.jpg

Last edited by theone29; 12-22-08 at 05:34 PM.
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Old 12-22-08, 05:42 PM   #2
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yes
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Old 12-22-08, 05:46 PM   #3
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Likes that 09 RH.
Yu Running a Singlespeed with one brake!?
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Old 12-22-08, 05:47 PM   #4
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Yes as long as you run a 1/8 chain.
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Old 12-22-08, 05:51 PM   #5
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Yes as long as you run a 1/8 chain.
i doubt his bike came with a chain/chainring combo that isn't compatible with itself. It's either all 3/32 (in which case this setup will work fine) or it's all 1/8 stock in which case putting a 3/32 cog on will also work. Assuming a bike is currently rideable (ie you don't have a 3/32 chain on a 1/8 chainring before you even thouch it) you can replace either chainring or cog with 3/32 and it will work 100% of the time
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Old 12-22-08, 05:59 PM   #6
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i doubt his bike came with a chain/chainring combo that isn't compatible with itself. It's either all 3/32 (in which case this setup will work fine) or it's all 1/8 stock in which case putting a 3/32 cog on will also work. Assuming a bike is currently rideable (ie you don't have a 3/32 chain on a 1/8 chainring before you even thouch it) you can replace either chainring or cog with 3/32 and it will work 100% of the time
In general this is what I was saying.
I think.
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Old 12-22-08, 06:02 PM   #7
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Probably. My explanation went all over on account of my doctor prescribing me hycodan as a cough suppressant. I'm a bit scattered presently...

But yeah, I guess if you're ever in a situation where you don't know what's on your bike, 3/32 cogs and rings will always work, and 1/8 chains will always work.
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Old 12-22-08, 06:23 PM   #8
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Likes that 09 RH.
Yu Running a Singlespeed with one brake!?
i was going to freewheel, but i think i am going to try out the fixed thing once i swapped out the 16t to a 18t fixed. the area i live and ride in is somewhat hilly, hopefully a 18t is enough. i've been riding 50x17 or 19 on my geared bike so i can somewhat get use to the fixed gearing.

just to shave some weight, i took off the rear brake, reflectors, stock pedals. i am swapping out the saddle, seat post, fork, stem, track bar for a longer deda stem, a normal road bar, carbon seat post, fork and selle slr xp saddle.

this thing is a 50cm, stock weight is a little over 21lbs. i am hoping to take it down to around 18-19.
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Old 12-23-08, 09:33 AM   #9
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If you're ever in a situation where you don't know what's on your bike, 3/32 cogs and rings will always work, and 1/8 chains will always work.
This should be stickied or maybe added to the Gearing Primer sticky.
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Old 12-23-08, 09:44 AM   #10
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yes.
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