Aluminum layshaft is strategically CNC-machined to reduce rotating fat without compromising power or integrity. The accuracy layshaft minimizes runout, eliminating drivetrain vibration and creating a positive stability. The layshaft includes two pressed-in bearings to further decrease drivetrain vibration. The layshaft features super slim design and a square shape in which the all-new pulleys are keyed toward construction. The pulleys are guaranteed by an O-ring or the C-clip depending on the drivers preference. Machined from premium Swiss 7075 T6 aluminum and black colored anodized.