This is the Carburetor Dust Cover from Ultimate Racing. This ring has been designed to guarantee the best sealing of the carburetor.
Made of 7075 aluminum anodized in red color and laser engraved.
Intended for the Ultimate MXS and MTS carburetors, or any OS engine with 21J carburetor.
Mounting Tip: Lubricate the dust cover and insert the ring with the internal chamfer facing the engine. If it is difficult to introduce it or you see that you are deforming the dust cover, remove the ring and add more lubrication.