when Moto Laverda first used those front mudguards (SF1) they were solid mounted, the rubbers and (anti crush) spacers with correspondingly larger holes in the brackets came in late 1973/early 1974 model year, as was very common, the rider/owner was doing the development work, I did this to my SF1 after four weeks of ownership, Slaters provided new mudguard brackets FOC, which I drilled out, made spacers and fitted rubbers to, I can't remember what the rubbers were intended for, but this was in the days of being allowed to walk up and down the shelf aisles at the local motor factor, who had stock going back 70 years, since sold on the business and all the old stuff is gone, very sad, but 15 feet of shelves with polish etc on, a great shame but I can understand the space requirements and having to stock things that are constantly selling, instead of staining the shelf for decades earning nothing. The last time I needed a Land Rover starter solenoid for TOG, he said that the last onees were nearly gone and in the future would be next day delivery, in which case, I might as well mail order it myself, oh dear, sad old world.
CLEM