It is a special motor mount for YD-2S of high mount motor.
Cooling effect is high with aluminum heat sink shape and efficiently cools the motor by drift running which tends to heat up.
In addition. a dedicated stay that can mount a cooling fan of 30 mm square is also included. so if you can prepare a cooling fan for motor cooling separately. it will demonstrate even higher cooling effect.
The YD - 2S motor mount can move the motor position in three stages forward and backward depending on the installation position. but with this special motor mount it is possible to set finer in the range of movement. and by choosing from the total of seven stages the finer Weight balance setting becomes possible.