Allen key size for bottom yoke pinch bolt?

[Bonzo]

...for '74 850 please?

 

[L.A.B.]

5/16".

 

[Bonzo]

Thank you Les

 

[Bonzo]

Of course I haven't got one of these

 

[L.A.B.]

Try 8mm (if you have one?).

 

[Bonzo]

8mm is just off. Feel like it will knacker the head.

As it happens, the aptly named Screwfix has come to the rescue. I was screwed, now I'm fixed

 

[L.A.B.]

8mm is just off. Feel like it will knacker the head.

8mm is slightly larger than 5/16" so it should be a tighter fit. 8mm fits mine anyway.