● Must with:H45157 Motor Pinion Helical Gear 12T. ● New style high strength 121 tooth Mod 0.6 helical main hear. The increase gear pitch can withstand higher power, at the same time minimize operational noise. A great upgrade to withstand the modern high power system. ● Utilizes high strength polymer plastic with excellent rigidity and flexibility characteristics. ● Patented unique built in fan design to create induced air flow, effectively cooling electronics and motor. ● Gear ratio 10.08:1.
● CNC M0.6 Slant Thread Main drive gear(121T) x 3 ● Weight:35.3g
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