hi i have a pair of forks for 7in front brake the boss has been removed for brake anchor can you obtain a spindle with smaller thread to fit 8in brake thanks
Are you talking about replacing the Alloy 56/57 type hub or the iron 58 on iron 7" full width hubs with which 8" brake?
While only two were used on the A7/10 BSA had at least four 7" front brakes in the fifties and likewise several 8" front brakes (half and full width).
If you can clarify which year/type brakes/forks that might help
as there are many variations if we include other BSA models