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Old 10-12-2009, 01:59 AM
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rcboy76
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Default MO3-M Gear Ratio

Hello to all my friends,

Anyone can guide me how to calculate the gear ratio for Tamiya MO3-M model. To my understanding, to calculate the gear ratio, we need to know what is the internal gear ratio, pinion and spur size. I dont face the problem for my TT01..but this MO3 model is slightly confusing me..

Ok, for example, the TT01 :
Internal gear ratio = 2.6
Spur size = 58
Pinion Size = 24

So the final ratio is (58/24)x2.6 = 6.28,

But, how to calculate the ratio for MO3-M model?
The internal gear ratio = 3.134,
Pinion let us say using = 20
How about the spur size? because inside there we can se many part of gear..
which one gear to take..

Help guide me, and correct me if im wrong..
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