Re: I fixed a broken spoke! - Cycling Mob: Road Cycling, Mountain Biking and More

12-23-2006, 05:24 PM

jim beam wrote:

>
> that's the problem! jobst's formula doesn't account for rim distortion.
> you need to measure tension of the spoke directly. which exactly what
> fogel did.

Yah, you nailed that impostor once again, jim. Keep up the good work!

12-23-2006, 06:25 PM

Peter Cole wrote:
> jim beam wrote:
>
>>
>> that's the problem! jobst's formula doesn't account for rim
>> distortion. you need to measure tension of the spoke directly. which
>> exactly what fogel did.
>
>
> Yah, you nailed that impostor once again, jim. Keep up the good work!

don't be a sarcastic fool peter. the assumption that a rim is perfectly
rigid, as your formula does, is incorrect. therefore assuming spoke
tension is a function of simple deflection is incorrect. unless you
know the stiffness of the rim and want to adjust accordingly, you have
to measure direct. you didn't do that. jobst didn't do that. and
besides, if you're so confident that your rims /are/ perfectly rigid, go
ahead and prove the point by making direct tension measurements, then
reporting your results!