This product is New - BSA A10 A65 A7 fork gaiters gaiter set twin 42-5320 rubber boots.
I bought these for my '83 Sporty with 35mm slider tubes.
The larger 2 1/4" end will fit over the rubber fork boots perfectly. Well, a little snug.
The smaller 1 7/8" end is too large for the 35mm tubes.
I found out that the 45400-75 Harley fork seals (1 pair 35mm Sportster) fit around the tubes and their 1 7/8" outside dia fit inside the smaller end of your boots. Fits perfect. Like they were made for each other!
Just in case someone asks "Will these fit Harleys with 35mm forks?" Yep, they will. Sort of.