●Compatibly: The brass C-Hub are compatible with traxxas TRX4 Defender BroncoTRX6 1/10 RC crawler car. ●High-Quality Material: The brass caster blocks, C-hub carrier, and portal drive counterweights are made from high-quality brass material for increased durability and improved performance. ●Improved Performance: These upgrades offer improved steering angles, smoother response, better traction control, and a stronger and more stable steering setup for your Traxxas TRX4 Defender TRX6 1/10 RC crawler car. ●Built to Last: These brass C-Hub are designed to last and withstand the toughest off-road conditions, ensuring you get the most out of your cars performance. ●Essential upgrades: These upgrades are a must-have for any Traxxas TRX4 Defender Bronco TRX6 1/10 RC tracked car enthusiast, investing in excellent quality and performance for your car and taking your driving experience to a new level.