Ron Ruff wrote:
jim beam wrote:

go to sapim.be and dig about for their fatigue strength tables.


http://www.sapim.be/index.php?st=pro...=fatiguetes t

If I calculated correctly their "fatigue test" results seem a little
odd. 1,000,000 wheel revolutions is only 1,340 miles
(27*pi/12/5280*1,000,000). Even the CX-rays with 3,500,000 revolutions
only get 4,690 miles.

I would be nice to know more about that testing...

all i've discovered is that it was done by cycling from 90kgf to zero.
that's much higher than most wheels see in service. being as fatigue
life is usually regarded as having a logarithmic relation to stress, you
can see that your mileage will quickly increase with decreasing stress
cycle.