Spongebob Sad Faces Why Is SpongeBob Sad? (Wrong Answers Only.) ACERBIS X Factory Handguards TUAREG 660. Acerbis X Factory Handguard The Acerbis X Factory Handguards are designed for those looking for the ultimate in style and protection. X Factory are the new handguard from the Italian firm Acerbis made for those looking for the ultimate in style and protection. Mount the X Factory to nearly any bike with the provided universal mounting hardware. Acerbis X Factory Handguard features: Steel bar printed on its surface in different colours Anticorodal armbands to fasten the hand guard to the handlebar Steel expander for tighter fastening and to oppose torsion in case of impact Dual injection covers Materials: Cover: 85% polypropylene, 15% rubber (TPE) Bar: 80% steel; 20% polypropylene All off road aluminium handlebars with an internal diameter of 13. 5mm to 16mm and an outside diameter of 22mm to 28mm including Fatbar and Twinwall bars. What's in the Box: Left and Right Handguards Universal Fitting Kit