A good place to start is just copy Campagnolo's rear hub flange spacing. It has been proven. It is best to keep the off side spokes tight enough that they don't go to zero tension in use.
Jim Merz Big Sur CA
On Sun, May 30, 2010 at 10:49 AM, John Betmanis <johnb@oxford.net> wrote:
> I'm also interested in the answer to this question. A couple of years ago I
> bought a pair of "vintage hubs" off eBay, shown here:
>
> http://img24.imageshack.us/
>
> As you see, the rear hub has the left bearing inboard of the flange, unlike
> the hubs you see today. Given the same over locknut distance, this rear hub
> has the flanges spaced farther apart. The drive side spokes would have the
> same tension on both types of hubs, but the left side spokes would have less
> tension on this hub. Does that matter? I think not, except to an automatic
> wheel building machine. Any more opinions?
>
> --
> John Betmanis
> Woodstock, Ontario
> Canada
>
> On 30/05/2010 12:07 PM, paccoastcycles wrote:
>
>> Left side flange position is dependent on over lock nut dimension.
>> Ideally, you make the frame wide enough so that you can have no dish.
>> With wide freewheels, that is the limiter.
>>
>> I'd start first by designing so that there is a very close proximity
>> between the cogs and the flange on the right side. Some hubs leave too
>> much space there and that aggravates the dish problem and is hard to
>> make up for with left flange position. Boy, I hope that's clear. It
>> makes sense to me, but just reading someone else's (my) words may be
>> harder to understand.
>>
>> Chuck Hoefer
>> Pacific Coast Cycles
>> Oceanside, California
>>
>>
>>
>> ----- Original Message ----- From: "Mark Stonich"
>> <mark@bikesmithdesign.com>
>> To: "Amir Avitzur" <walawalaoxenfree@gmail.com>;
>> <classicrendezvous@bikelist.org>; <framebuilders@bikelist.org>
>> Sent: Sunday, May 30, 2010 5:12 AM
>> Subject: Re: [CR] [Frame] Flange Positions in Rear Hub
>>
>>
>> At 1:17 PM +0300 5/30/10, Amir Avitzur wrote:
>>>
>>>> The position of the drive side flange on a rear hub is determined by the
>>>> "over lock nut dimension" and the width of the freewheel or cassette.
>>>>
>>>> What determines the position of the non-drive side Flange?
>>>>
>>>> I ask because, I'm planning to make my own hubs and don't know what
>>>> to copy
>>>> as there are too many options.
>>>>
>>>> Is it better for the flanges to be close so as to "equalize" spoke
>>>> tension
>>>> on both sides,
>>>> or is it better to spread them apart?
>>>>
>>>
>>> My vote is for "close to equalize spoke tension". My son is a strong
>>> 215 pounder (98Kg) and has had no trouble with 28 spokes on Ritchey
>>> "Zero" hubs.
>>> --
>>>
>>> Mark Stonich;
>>> BikeSmith Design & Fabrication
>>> 5349 Elliot Ave S. Minneapolis, Minnesota 55417 USA
>>> Ph. (612) 824-2372 http://bikesmithdesign.com