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  1. #1
    jur
    jur is offline
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    Wisdom for lacing 36H hub to 28H rim?

    I acquired a 36H Torpedo Duomatic NOS hub and have some 28H rims. Is there an easy way of lacing these together? I was thinking of leaving 8H clear in opposing pair in the hub, spaced 90deg around the flange, but spoke length seems a challenge.

    Any wisdom that you might offer?
    My folding bike photo essays www.dekter.net/

  2. #2
    Car free since 1995 pm124's Avatar
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    I thought about having something similar done. It is not a job for anyone but an experienced wheel builder with a spoke cutting machine. Even then, it will be difficult convincing someone to help.

    Have you seen this? http://www.sheldonbrown.com/mismatch/

  3. #3
    Raleigh20 PugFixie, Merc LittlePixel's Avatar
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    Interesting conundrum! Just the sort of thing to solve of a Saturday afternoon...

    It's difficult because the 36 doesn't divide down very elegantly on each side of the hub (mmm 9s!).

    Attached is my solution; Spokes would *not* be all of equal lengths as I'm sure you can tell. There's some crows-foot going on on two opposing sides; the pattern is three-spokes—skip-one—four-spokes—skip-one—three-spokes—skip-one—4-spokes—skip one; left side is same pattern rotated 90.

    Here's a good page with info on how to work out spoke lengths on wheels with disparate spoke sizes; this page for 36/24 but the principle for measuring is the same)
    Attached Images Attached Images

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