DIMOTIV DMV Rear Chain Cover for BENELLI BN600 (Gold) This listing of Rear Chain Cover fits BENELLI BN600. 6061-T6 Aluminum base have more strength, hardness, flexibility and percentage prolongation of the base are all better than those of average 6061 ones. Anodized color with special transparent coating, which is even, with the feature of not losing color easily under any weather factors. White iron bolt, which ensures that it will not go rust easily under bad weather condition. No modification needed.