Doug:
Your measurements are far more reliable than the "standard" data. The manufacturers' specs are often wrong, and the info in Renard's database sometimes differs from the manufacturers' data (when you can get it, I mean!)
Finally, there are some details you probably should work out for yourself. For example: the spoke length from the equations puts the end of the spoke at the "effective rim diameter," whatever that is. The diameter in the mfr specs, and what you want, my be two different things; it depends on the spoke-nipple dimensions, which depend in turn on the spokes you use. For example, I calculate the spoke length to give me the most room for error, which means that the nipple is centered between its minimum and maximum positions as it is threaded onto the spoke. For DT spokes, this puts the spoke end about 1.2-1.5 mm below the top of the nipple head. For other spokes this may be different.
This sounds like a fine detail, but even ~1 mm error can result in spoke threads showing or the spoke protruding from the nipple. You really don't want a protruding spoke with older bikes, since the nipples may not be recessed, and contact the tube.
Steve Maas (working too much and riding too little in) Long Beach, California.
Doug Van Cleve wrote:
> Howdy folks.
>
> I am fixin' to build some tubular wheels around Normandy L-C high flange
> rear and low flange front hubs for my old but post-CR vintage RB-2. I use
> Damon Rinard's Spocalc to get my spoke lengths and these hubs are not in
> there. Does anybody know all the needed dimensions for these? I have done
> the measuring myself with a metric tape measure before and it seems to work
> okay, but I thought I would see if these specs are out there somewhere...
>
> Thanks, Doug
>
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