Front brake Question

[mike667]

Hey gang
 hey anyone know (or can easily determine) the size of the nut that retains the front brake cover on the axle of their A10 (swing arm- 61)? Mine is stuck on there and my adjustable pliers are surely going to trash it trying to remove it so thinking i need the proper socket/wrench to get it off and don't like the thought of carrying the tire around the local tool barn (esp if it's shitworth) (just got relined shoes back from SRM- dying to see if they will make a difference once fitted etc.)
 thanks!

mike

[A10Boy]

Its 3/4 BFS - 11/16 Whitworth and it will be king tight. I trawled ebay for weeks and found a 2 foot long ring spanner and a nice box spanner which drops into the recess.
If you don't tighten it with something hefty, it will work loose and rattle the backplate.

Good luck with you new brake!

[mike667]

Awesome thx Andy!

[A10Boy]

BTW, the Calor gas spanner is the same size although its usually an open ender.