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Crank for Sturmey-Archer 8-speed



 
 
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  #1  
Old July 16th 08, 02:13 PM posted to rec.bicycles.tech
William Sherrett
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Default Crank for Sturmey-Archer 8-speed

I'm trying to put a new Sturmey-Archer 8-speed hub on a set of wheels for
a hybrid/city bike, but Sheldon Brown's calculator tells me that I need
to use a 30-tooth on the crank to get a usable gear range. I can't
imagine that the S-A folks didn't anticipate this problem, namely, that
there are no single gear cranks that small, but I haven't found any
mention of this. I don't think S-A offers a crank of this kind.

I'm wondering if anyone here has heard of how to set one of these up?
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  #2  
Old July 16th 08, 03:54 PM posted to rec.bicycles.tech
Hank
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Posts: 887
Default Crank for Sturmey-Archer 8-speed

On Jul 16, 6:13*am, William Sherrett wrote:
I'm trying to put a new Sturmey-Archer 8-speed hub on a set of wheels for
a hybrid/city bike, but Sheldon Brown's calculator tells me that I need
to use a 30-tooth on the crank to get a usable gear range. I can't
imagine that the S-A folks didn't anticipate this problem, namely, that
there are no single gear cranks that small, but I haven't found any
mention of this. I don't think S-A offers a crank of this kind.

I'm wondering if anyone here has heard of how to set one of these up?


Most of the success stories I've heard about these hubs have been with
small-wheel bikes: recumbents, folders, etc.

If you haven't already purchased the hub, I'd say go for a Nexus
instead.

That said, if you can find an old 94/58mm triple, you can get a 30T
middle ring for it, and either use short bolts or put a bashguard on
the outer position. Probably cheaper to get a 110/74 crank like a
Sugino XD, use a longer BB to get the chainline you want on the granny
ring, and either put a bashguard on the outer position, or dremel off
the mounts for the larger rings.
  #3  
Old July 16th 08, 04:23 PM posted to rec.bicycles.tech
landotter
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Posts: 6,336
Default Crank for Sturmey-Archer 8-speed

On Jul 16, 9:54*am, Hank wrote:
On Jul 16, 6:13*am, William Sherrett wrote:

I'm trying to put a new Sturmey-Archer 8-speed hub on a set of wheels for
a hybrid/city bike, but Sheldon Brown's calculator tells me that I need
to use a 30-tooth on the crank to get a usable gear range. I can't
imagine that the S-A folks didn't anticipate this problem, namely, that
there are no single gear cranks that small, but I haven't found any
mention of this. I don't think S-A offers a crank of this kind.


I'm wondering if anyone here has heard of how to set one of these up?


Most of the success stories I've heard about these hubs have been with
small-wheel bikes: recumbents, folders, etc.

If you haven't already purchased the hub, I'd say go for a Nexus
instead.

That said, if you can find an old 94/58mm triple, you can get a 30T
middle ring for it, and either use short bolts or put a bashguard on
the outer position. Probably cheaper to get a 110/74 crank like a
Sugino XD, use a longer BB to get the chainline you want on the granny
ring, and either put a bashguard on the outer position, or dremel off
the mounts for the larger rings.


That's great idea. No reason to **** away money on the aluminum ringed
XD600 when you're just gonna ditch two rings either. The XD300 + a
Salsa bash guard would be a really sweet looking and serve as a
trouser saver as well. The granny or middle ring at 26 or 36 could
work.
 




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