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jnev
RC-Monster Brushless
 
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Posts: 2,864
Join Date: Jan 2007
Location: SoCal
05.18.2008, 08:16 PM

Use this calculator:
http://www.scriptasylum.com/rc_speed/_top_speed.html
And just plug in all the values. Then test a couple different spur/pinion combo's to achieve the speed you want.


   
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