On May 8, 11:36=A0am, "joseph.santanie...@[EMAIL PROTECTED]
"
<joseph.santanie...@[EMAIL PROTECTED]
> wrote:
> Hi All,
>
> I recently bought some pre-built wheels which turned out to not really
> be up to the task. So now I am going to build some replacements.
>
> First a little background on wheels I have and their various strengths
> and weaknesses.
>
> The pre-builts had 20 bladed radial spokes in front, 24 2x bladed
> back. The rear hub had high and narrow flanges. The rear felt ok
> (until I broke the freehub), but the front was too flexible. The
> brakes would rub when I stood. These had 50mm deep aero section.
>
> My every-day wheels are 28 2x front, 32 3x back. Ultegra hubs,
> Velocity Deep-V rims. Those are rock solid and plenty stiff. Just not
> very aero, and heavy.
>
> I have also a set of lightweight tubulars which are 28 radial front,
> 28 back 2x drive side, radial NDS. These are on American Classic hubs
> which are very narrow with virtually no dish, so the radial NDS is
> probably dumb. These wheels are very light, but the rear has a
> disconcerting springiness to it. My suspicions are that the narrow
> flange spacing and radial NDS are the main culprits. I only mention
> these wheels are evidence of why I am skeptical of radial NDS.
>
> So on to the new wheels. The rims are 28h 50mm deep carbon. 32 was not
> available. The hubs are Dura Ace 7800. Dura Ace have wider flanges
> than the AC, so I'm not too worried about the wheels being too floppy.
> I want aero, but also I want solid out of saddle feel like my Deep-
> V's.
>
> But the question is whether radial up front will provide a more
> laterally stiff wheel, or should I go with 2x? Spokes wil be CX-Ray.
> On the rear, it will be 2x drive side, but what about radial NDS? Is
> there any real reason I should do that? Any reason not to use CX-Ray
> on all 28, or should drive side be different? Rider weight 205lbs.
>
> Joseph
At 205 pounds and remembering that CX-rays are pretty thin, 2 cross
front and 3 cross rear, laced inside pulling or head-out, due to the
pulling spoke flange overlap. If you were starting from scratch, at
least 32h rear, IMO.
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