Thread: FDR Help
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Old 07-05-2006, 06:03 PM   #3
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Originally Posted by keachj06
can someone tell how exactly to get a FDR of 10.20 on a novak 4.5r brushless. I have clue how to figure it out.
a 120 spur and a 20 pinion will get you a 10.20
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