This is an optional ST Racing Concepts Aluminum Finned Heatsink Motor
Plate, and is intended for use with the Kyosho Ultima SC, SC-R, RB5 and
RT5 1/10 vehicles. CNC Machined from high-grade aluminum, this aluminum
heatsink motor plate will help to efficiently dissipate the heat from
the motor and also adds killer factory looks to your Kyosho off-road
vehicles. The motor screw slots have also lengthened to accommodate
bigger pinion gears that are used to obtain proper gear ratios for
today’s 17.5 brushless motors.