Thread: Powerball
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Old 25-05-2005, 12:59   #73
bmxbandit
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Re: Powerball
Quote:
Originally Posted by Chris T
I'm intrigued by suggestions that the ones with lights in them max out at less than 15,000 rpm. Do the standard ones have an upper limit? If they do, the 'competition' element isn't going to last very long!
i'd imagine the upper limit would the first resonant frequency, which is determined by the manufacturing accuracy. They're guranteed to be OK up to 250Hz, but after that you'll probably find a 'normal distribution' of manufacturing accuracy.

in other words, any powerball will get up to 15,000rpm wthout a problem. at an unspecified speed after that, performance may be down to pot luck!
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