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#11349
BRIAN MARSHALL
Participant

Hi John, When I was running the Spares Scheme I had chainguard mounting bosses in stock, but only a handful. It was basically a disc with one chamfered edge, about 1.25″ diameter and about 1/8″ thick, and a 1/4″ countersunk hole in the middle for a screw to sit in that held the chainguard to its mounting lugs. Then on the remaining part of the disc were four smaller holes, also countersunk, that were intended to feed solder into when fastening the boss to the guard. Once the boss is in the correct position the same holes can then be used to install rivets for final fixing. I have one or two old used ones, and could let you have one as a sample if needed.
Brian