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Chain tensioner for Nexus hub

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Chain tensioner for Nexus hub

Old 07-06-06, 05:52 PM
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Banzai
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Chain tensioner for Nexus hub

I'm contemplating a build as for a friend who's interested in a Nexus hub. My difficulty is as follows.

Most likely I'm looking at using a frame with vertical dropouts. Without the ability to vary the wheel placement to tension the chain, I'm in a bit of a bind insofar as how to do that.

Option #1: Stick a derailleur back there to act as the chain tensioning mechanism. However, I don't like the notion of simply hanging a derailleur on a bike simply to pull a chain.

Option #2: Find a device that does this that's not a derailleur. Does anyone make this, and where can I find it?

Thanks for the input.
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Old 07-06-06, 06:56 PM
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spider-man
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Lots of companies make them. I believe Surly and Paul's Components to be among them.
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Old 07-06-06, 07:40 PM
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If you have a coaster brake, you CANNOT use a spring type chain tensioner a la Surly Singulator. You can use the idler wheel type like a tandem's timing chain idler, if you've the skill to install it.
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Old 07-06-06, 09:12 PM
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Search singulator. Also shimano will have one available in the fall to go with their updated nexus. Called Alfine.
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