Its 11/16 i think in bsa

email (option): lagonas21@windowslive.com

???. The cylinder base studs are 7/16 (14 tpi Whitworth thread into the case and 20 tpi cycle thread for the nuts). The nuts are reduced hex for a 5/16 Whit or 3/8 British standard spanner. I don't know where 11/16 comes into it?

Here is the spanner I use. Ron

email (option): ronpier@talk21.com

Ron, he probably means US AF, but that won't fit right.

Cheers,

Lex

email (option): welbike@welbi**.net

any way how i will make a custom tool for the nut?

email (option): Argiris

Yes Lex. A 7/16 USF nut has the same 20 tpi but is a different thread form and a much bigger hex size. ie .6875" as apposed to the correct .6". They must be close to, if not rubbing on the barrel. Ron:thinking_face:

email (option): ronpier@talk21.com

An easy way to make a tool that does the job is to take a 15 mm ring spanner, heat it red and bend it up in a way it will clear the magdyno.



Worked well for me. BR, Michiel

Yes thats the tool 15mm fits good,can i keep this photo?thanks

email (option): lagonas21@windowslive.com

Hi michiel
You always have some interesting tools to share with us

Hope you, Elko & all are keeping well
Br
John

email (option): jonnyob1@googlemail.com