They are free rear upright elements for the TRF420 racing automobile chassis.
• TRF420 E Parts x1
• Components are molded in carbon fiber-reinforced plastic for superior rigidity.
• Bearing roles are exactly aligned for maximum efficiency.
• to be used with 3mm diameter shafts (available in Item 51637).
• suitable for automobiles using Item 51639 TRF420 D elements (suspension system arms).