have 2 n5c helis both with 55 hzr motors > just recently see that rc japan is offering a new version of the os 105 hzr called the hzr super 6. they say the motor has a crank shaft designed for 50 class helis. they also include a mounting kit conversion to get the motor to fit. my question is wouldn't I need a different pinion to get the gear ratio correct, and would it work in the n5c because they only mention the trex 600.
