Traxxas 3362-BLUE Heat Sink Low Profile Blue quake-parts It mates with the 43

It mates with the 43 tooth ring gear for a 4

LiPo Cells: 2S LiPo (Only 2S)

and operating voltage before applying power

Losi LOSB6591 Side Cage Nut-Inserts 5IVE T MINI WRC

Traxxas 3362-BLUE Heat Sink Low Profile Blue quake-parts It mates with the 43Low profile aluminum heat sink for the Velineon 1200XL brushless motor, with a blue anodized finish. One per package. The heat sink covers nearly 75% of the motor can, giving it far more surface area to pull heat out of the motor than a partial clamp on design. Heat is what kills brushless motors sustained high temperatures degrade the magnets and cook the windings so shedding it is the single most effective thing you can do for motor life on an 8S