Samix TRX-4M Brass Heavy Steering Knuckle Set with Scale Brake Rotor and Caliper. Constructed from CNC machined brass these knuckles improve climbing performance and stability by lowering the center of gravity of your TRX-4M. With the addition of the simulated brake rotor and calipers, this adds even more weight while giving your vehicle a more scale look. This set offers an additional 22g of weight while improving the durability and precision of steering components. Package includes two brass steering knuckles, two scale brake rotors with caliper and mounting hardware.

• Adds 11g per side for better center or gravity and forward weight bias for climbing
• Increased durability and rigidity over the factory parts
• Made of high quality brass
• Will work with factory TRX-4M parts and Samix brass upgrades
• Black coating to help prevent corrosion
• Scale brake rotor and caliper offers incredible scale looks