HobbyPlus Machined Helical HD Transmission Gear Set Heli Engines 136-165 C/F Left + Right

136-165 C/F Left + Right Tail Plate (2)

Input Voltage:2-3S

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HobbyPlus Machined Helical HD Transmission Gear Set Heli Engines 136-165 C/F Left + RightSpecial Notes: The included pinion gear is helical design and is required to install on the motor shaft. The V3 Rushmore and THunter will have a lower ratio with these gears. If you want to maintain the same gear ratio, you will need to run the overdrive portal gears in the portal hubs part # 240388 Why Helical Gears: Helical gears are a type of cylindrical gears with slanted tooth trace. Compared to straight gears, they have the larger contact ratio