Comes in Silver Color of A3 and B3 holder.
The PN Racing motor holder is made of high quality alloy.
Design with the space, you no need to take out the pinion, then you can take off the holder A.
Not only adds to the aesthetics, but also acts as a heat sink to dissipate the heat produced during intense racing.
Also has a cut thru feature which makes it more convenient to remove the motor, without having to remove the motor holder.
The fins help keep the weight comparable to the original motor holder, and also acts as cooling fins.
Has an extended surface for better heat dissipation.
Cooler motor means longer motor life, and better motor performance.