Motor cooling fan mount is made of carbon fiber cross piece and aluminum stopper which allows much stronger hold power for the motor and hold on different size surfaces.
Specification:
The carbon fiber cross piece act as a tensioner to give a more secure hold to the motor.
Only one screw is needed to mount and dismount the fan after initial assembly.
With the ultra light design, the total weight of the mount is less than 5.8g.
Carbon fiber cross piece for both 30mm and 40mm.
Extra scrub screw mounting holes allow stronger hold if need.