GPM Racing Brass Pendulum Wheel Knuckle & 9mm Hex Adapter 16 Piece RC Axle Weight - GPM-TRX4023X Colour:Default Title Requires separately purchased electronics

Requires separately purchased electronics

Steel construction gives these rails significantly more resilience than plastic chassis components

The Pro-Line PRO9041205 Hole Shot 2

54-tooth count allows tuning of final drive ratio for top-speed or acceleration-biased setups

ECX ECX212003 1/18 scale drive shaft set

GPM Racing Brass Pendulum Wheel Knuckle & 9mm Hex Adapter 16 Piece RC Axle Weight - GPM-TRX4023X Colour:Default Title Requires separately purchased electronicsThe GPM Racing TRX4023X Brass Pendulum Wheel Knuckle Axle Weight and 9mm Hex Adapter set is a 16 piece brass upgrade kit designed for the Traxxas TRX 4 crawler. Brass weighting is a popular modification for scale crawlers because it lowers the centre of gravity and adds mass to the axle ends, improving traction and stability over technical terrain without altering the vehicle's geometry. This set combines pendulum style knuckle axle weights with 9mm