So â€¦â€¦. the speedo drive on my B44 has finally shuffled off this mortal coil and passed on to the great landfill in the sky (or at least it will when the garbage collection comes around). For various reasons, including smuggling and other nefarious acts (as Capt Jack Sparrow said "welcome to the Caribbean luv"), I can save a couple of $ and get a replacement that is listed as for an A65 / Norton Commando, these have a 3/4" hole yeah? mine should have an 11/16th which is smaller. Could the 3/4" hole ones fit?