you see the main gear attaches to the main shaft by 2 grub screws under the gear. if those 2 screws are good and it locks the shaft then your main gear is still good.

The desgin of the G2 is to ensure that when you crash 50H08-26 Gear Set will strip so that it saves your belt and motor. 50H08-26 Gear Set is cheap to replace but it's quite hard to replace.

Andy