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Old 11-08-2008, 05:08 AM   #1
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Default Advantages of 78 tooth spur in a B44 ?

I've noticed alot of factory guy's are running a 78 spur in their B44's with a 7.5, What is the advantage compaired to the stock 84 ?
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Old 11-08-2008, 05:53 AM   #2
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I would guess that it moves the motor weight closer to the center. Brushless motors are a lot heavier than a servo. Unless they are running something high RPM that they need the larger spur to get the ratio why not. It should help protect the gear from trash a little also.
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Old 11-08-2008, 12:12 PM   #3
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ITs mostly because the motors they are running. To get the proper gearing pinion wise you need the smaller spur. I ran an lrp 7.5 with the sintered rotor geared between 24 and 26 to the 78. Certain motors/rotors have so much torque they need a lot of gear.
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