See: MIP

MIP have introduced the Pucks 17.5 Drive System for the Team Associated B6.1 and B6.1D. It features an aluminum based drivetrain system which includes a 2-piece aluminium outdrive cup and aluminium outdrive hub, two bi-metal bones, and the replaceable plastic orange wear Pucks that take the place of the inferior steel pins. This combination greatly increases the longevity of the drivetrain and most importantly decreases the drivetrains overall rotating mass by a whopping 50%. The decrease in weight directly results in quicker acceleration, deceleration, and lower motor temperatures.