This purchase is for a set of top engine guards for the above bike model. The kit comes with both top guards and does not include the set of bottom guards. The steel tubing has four mounting points preventing them from rotating in the event of a low side. They are also braced together in the middle to further increase the strength of the guards. We use highest grade commercially available 12.9(177,000 psi in tensile strength) wherever possible. Rest assured that you are getting the best material commercially available.