I just picked up some gingerbread - a 65700-52(A) Boot Guard, NOS for $26 on eBay. The 1954 and 1956 parts books show the 65700-52, but not in the illustration. The 1957 parts book shows the -52A, but not in the illustration. The 1963 and 1965 parts books show the -52A in the illustration. Apparently, it was changed slightly in 1957 for the Sportster. This one was advertised as a -52A.
Questions: what's the difference between the -52 and -52A? Big twins also had a rear pipe boot guard - was this used on the BT's or is that a different one? Does anyone have an accessory catalog showing this?