[MENTION=152773]noglider[/MENTION] I thought rims on low spoke wheels rub because the rims are stiff, not for lack of spoke tension.
Debunking Wheel Stiffness - Slowtwitch.com
To help illustrate, Zipp also provided the graphic below. The blue line is a 303 Firecrest tubular, the green line is a 404 Firecrest tubular, and the purple line is an 808 Firecrest tubular. All of them were built with 20 Sapim CX-Ray spokes.
As you can see, the deeper and stiffer rims deflect less at the point of load (the road surface). However, they deflect more on the opposite side – where the brake caliper sits on a normal road frame.
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Genesis 49:16-17
"Well, well!" said Holmes, impatiently. "A good cyclist does not need a high road. The moor is intersected with paths and the moon is at the full."