Middle Drive & Secondary Pulley For light X/S/L1E X160 X260 Secondary Pulley: - Upgraded to 45# steel with a blackened treatment, improving wear and corrosion resistance. - Hollowed-out design reduces weight while maintaining strength. - Includes stronger screws to prevent breakage during use. - Machined by CNC technology for precise fitment. Middle Drive: - One-piece aluminum billet construction for superior strength and torque handling. - Grease fittings allow for easy lubrication of internal bearings. - Made from aircraft-grade 6061-T6 aluminum, lightweight and. - Anodized for added corrosion resistance, suitable for various weather conditions. - Machined by CNC technology for precise fitment. Fitment: - For light X - For light S - For X160 - For X260 Compatibility Disclaimer: This is an aftermarket replacement part.Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.