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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 05-20-11, 06:06 AM   #1
BlueRaleigh
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Largest tooth count difference for White Industries Eccentric Rear Hub?

If I'm running a White Industries Eccentric Rear Hub with a freewheel on each side, what's the largest difference the two freewheels can have from each other? Could I run a 16 and a 20 or is that too wide of a range?
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Old 05-20-11, 08:13 AM   #2
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it kinda depends on the length of your dropouts/fork ends. 4 teeth difference might be getting dangerously close to the edge.
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Old 05-20-11, 08:51 AM   #3
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No, it doesn't. :|
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Old 05-20-11, 09:16 AM   #4
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No, it doesn't. :|
You are correct, but only because you didn't make it apparently clear that your running it on a Verticle Dropout frame... Does the Eno even have threading for a freewheel on both sides? I haven't had the opportunity to run an Eno yet but I am on the hunt for one. I'd think that you should be able to get away with a 4 tooth difference, but there is no knowing with certainty until you try it out.

How much space does the Eno hub give you in a circumference?

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Old 05-20-11, 10:28 AM   #5
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White says you can order a Flip/flop Eno...I would say that the issue is in Chain length not anything else and 4 teeth is probably too much.
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Old 05-21-11, 09:39 AM   #6
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You are correct, but only because you didn't make it apparently clear that your running it on a Verticle Dropout frame
The only reason to run an eccentric rear hub is to apply chain tension on a frame with vertical dropouts.

In any case, I ordered two white industries freewheels that are 3 teeth apart. We'll see how well it works when they arrive.
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Old 05-21-11, 02:39 PM   #7
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It doesn't just depend on the teeth count difference, it also depends where your chain falls with each freewheel.

For example, I had a frame with short horizontal dropouts geared 42/15. Although the dropouts were long enough to accommodate a 6 tooth difference, there was no way I could run 42/15 and 42/16 on my flip flop because the chain would be too short in one or too long in another if I added a link.

Each tooth moves the axle 1/8". You can try measuring the hub in each position.
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Old 05-21-11, 03:30 PM   #8
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If I'm running a White Industries Eccentric Rear Hub with a freewheel on each side, what's the largest difference the two freewheels can have from each other? Could I run a 16 and a 20 or is that too wide of a range?
the erics eno hub is a fixed/free. you cant run freewheels on both sides... if you were doing a cog and freewheel 4 tooth might be too much for the hub to rotate to take up slack.
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Old 05-21-11, 04:00 PM   #9
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the erics eno hub is a fixed/free. you cant run freewheels on both sides... if you were doing a cog and freewheel 4 tooth might be too much for the hub to rotate to take up slack.
Freewheels can be run on both sides of a fixed/fixed hub, you just don't put lockrings on.
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