Aluminum layshaft is strategically CNC-machined to attenuate rotating weight without compromising power or integrity. The accuracy layshaft minimizes runout, eliminating drivetrain vibration and producing a positive stability. The layshaft includes two pressed-in bearings to help expand reduce drivetrain vibration. The layshaft features super narrow design and a square shape where in fact the all-new pulleys are keyed to the assembly. The pulleys are secured by an O-ring and/or C-clip with regards to the drivers preference. Machined from premium Swiss 7075 T6 aluminum and black colored anodized.