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  1. #1
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    New Sturmey Archer 5 speeds

    What's this new 'N' range all about? Looks like the Brompton 6 speed type of thing. . . how many sprockets/cogs are meant to fit on the driver? Is that how the Shimano system always looks, i.e. with enough space to adjust sprocket/chainline position or is this clearly intended to run 2 sprockets?

  2. #2
    coprolite fietsbob's Avatar
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    Got links?


    using the updated sheldon gears math engine that new 5 speed
    is adding 1v and 5v to an aw3 ratio set, for 2nd and 4th
    whereas the older 5 speeds tightened up the ratios.
    Last edited by fietsbob; 09-23-11 at 11:03 AM.

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    On the SA website there's a bunch of new 5 speeds that have a 9 spline type sprocket fitting, which look similar to the brompton double-sprocket driver.

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    tcs
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    Palmer tcs's Avatar
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    Quote Originally Posted by chagzuki View Post
    What's this new 'N' range all about?
    The driver interfaces with a nine-spline Shimano cassette style cog, rather than the usual three tab cogs. I'd guess it's something that OEMs and today's bike shops have asked for.
    "When man first set woman on two wheels with a pair of pedals, did he know, I wonder, that he had rent the veil of the harem in twain? A woman on a bicycle has all the world before her where to choose; she can go where she will, no man hindering." The Typewriter Girl, 1899.

    "Every so often a bird gets up and flies some place it's drawn to. I don't suppose it could tell you why, but it does it anyway." Ian Hibell, 1934-2008

  5. #5
    Folder Noob Drdul's Avatar
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    Quote Originally Posted by chagzuki View Post
    What's this new 'N' range all about?
    The only 5-speed hubs I can find on the SA website with a "N" designation are described as "now available with a 9 spline driver." In this one, for example, the image shows some sort of splined thingy on the right side where I assume the cog slips on, rather than threading on.

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    coprolite fietsbob's Avatar
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    how many sprockets/cogs are meant to fit on the driver?
    You have to measure .. BWR hub Made specifically for Brompton is for 2 3/32 cogs
    planetary internal ratios are wider than the 4/3 and 3/4.. in the middle gears.

    they could have used the same driver that they fit in the BWR hub , but that is Idle speculation.
    see what the Hubstripping blog has to offer,

    Write the Importer/distribuitor, or call a shop that stocks both..
    Last edited by fietsbob; 09-24-11 at 07:14 PM.

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    tcs
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    Quote Originally Posted by Drdul View Post
    In this one, for example, the image shows some sort of splined thingy on the right side where I assume the cog slips on, rather than threading on.
    FWIW, Sturmey-Archer has not made IGHs that take threaded-on cogs for, hmm, around 60 years now. The standard pattern, and one that's shared with most Shimano and SRAM (Fichtel&Sachs) IGHs is the three-tab interface. The "thingy" is called a driver.
    "When man first set woman on two wheels with a pair of pedals, did he know, I wonder, that he had rent the veil of the harem in twain? A woman on a bicycle has all the world before her where to choose; she can go where she will, no man hindering." The Typewriter Girl, 1899.

    "Every so often a bird gets up and flies some place it's drawn to. I don't suppose it could tell you why, but it does it anyway." Ian Hibell, 1934-2008

  8. #8
    coprolite fietsbob's Avatar
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    The new S3x a fixed gear hub with 3 speeds , threads the splines,
    so you can use a screw on freewheel. [Or a spline cog for using it , as a fixed gear]

    It is the lower 3/5ths of a 5 speed hub , 1:1 is the top gear

    White industries Dos is a 2 cogs machined out of one piece freewheel ..

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