X4F aluminum layshaft is strategically CNC-machined to cut back rotating fat without compromising power or integrity. The accuracy layshaft minimizes runout, eliminating drivetrain vibration and producing a confident protection. The layshaft includes two exchangeable bearings to simply help expand reduce drivetrain vibration. The composite gear pulley key sturdily toward layshaft, plus the completed set up is established on the motor mountââ¬â¢s metal layshaft axle. Machined from premium Swiss 7075 T6 aluminum and black anodized. Fits X4F