Hot Racing - Heavy 47g Modular Brass Inner Knuckle Weight, for TRXF21HE Paint & Supplies Aerosol Paint 2x Main Spring - Yellow

2x Main Spring - Yellow

the drivetrain of the vehicle becomes more efficient

Full-time 4WD for excellent control

Comes with a spare pair of motor brushes

Hot Racing - Heavy 47g Modular Brass Inner Knuckle Weight, for TRXF21HE Paint & Supplies Aerosol Paint 2x Main Spring - YellowHot Racing heavy brass modular add on inner knuckle weight for the front of the Traxxas TRX 4 crawler equipped with the Hot Racing TRXF21HE Modular Brass Outer Portal Drive Housing. Adds weight to the Traxxas TRX 4 crawler where it needs it down low. Adds 47g per hub to lower the vehicle's center of gravity, increase its stability, improve climbing, reduce the chance for flipping backwards, and make it an overall more capable crawler. Features: CNC