X4F aluminum layshaft is strategically CNC-machined to lessen rotating fat without compromising energy or integrity. The precision layshaft minimizes runout, eliminating drivetrain vibration and creating a confident protection. The layshaft includes two exchangeable bearings to greatly help expand reduce drivetrain vibration. The composite gear pulley key sturdily toward layshaft, as well as the completed arranged is set up in the motor mountââ¬â¢s metal layshaft axle. Machined from premium Swiss 7075 T6 aluminum and black colored anodized. Fits X4F