Not knowing much at all about MAR's I wanted to show what this particular job entailed. I am certain that it may not be of any help to all, but maybe someone will benefit from this small task.
As received said sprocket had 4 holes @ .404 & a bore to match wheel, that said I was wondering if in fact the later MAR's used shoulder bolts to attach said sprocket??
Anyway set up on mill & carefully bored to .591 (15mm locating lugs), alls well now.
What Did You Do To Your Bultaco Today?
in Bultaco
Posted
Well as usual I messed up and lost the last picture
This one since 1973.