About Traxxas Main shaft, 7075-T6 aluminum, blue-anodized (4)/ 1.6x5mm BCS (4)
The Traxxas Main Shaft is a high-quality, 7075-T6 aluminum shaft that has been blue-anodized for durability. It comes with four 1.6x5mm BCS (Ballistic Composite Shims) for use in the main gear assembly.