9mm bearing gearboxes are designed for high torque
Gearboxes can increase about 10% power output.
Package includes:
9mm V2 Gearbox shells
6pcs of 9mm bearing
1pc Cylinder head
1pc A&K Masada airnozzle
1 sets of gearbox screws (to include 4pcs of screws for the motor grips)
1pc tappet plate
1set of safety cover
