I’ve bought this upgrade and a pack of spare main gears from MiracleMart
The Autorotation pack includes:
- 1 Main Gear with 1 OWB (installed)
- 10 Spacers rings (washers)
- 1 Solid CF main shaft
- 1 Retainer (small rod)
- 1 Aluminium plate
- 2 Cool stickers !!!
- 1 Printed manual
The installation its not difficult….
1 Remove linkages.
2 Remove blade grip.
3 Remove swashplate.
4 Remove collar.
5 Press down main shaft
1 Follow assembly instructions but don’t use all the whasers just try and adjust.
Now the blades can be rotated to place the heli in the case without forcing the motor / gear.
After cutting the throttle your blades will keep spinning smothly !!!