Mystery brake plate

I believe that's the first, 1968 only, Triumph twin leading shoe backplate, with the torque locating jaw filed off and that square peg put in its place to fit the Norton fork slider.

In what way do BSA/Triumph shoes not fit?
 
Triton Thrasher said:
I believe that's the first, 1968 only, Triumph twin leading shoe backplate, with the torque locating jaw filed off and that square peg put in its place to fit the Norton fork slider.

Looking at the inside shot and the way it is cast and machined it looks as if it was intended for the peg/bolt to be there?

Triton Thrasher said:
In what way do BSA/Triumph shoes not fit?

There are pins for the trailing edges of the shoes to pivot on. Both ends of the BSA/Tri. shoes would rest against either side of the brake cams?

http://www.tri-corengland.com/index.html

Mystery brake plate
 
Cool, I've been wrong before. I didn't even know Triumph TLS shoes had no pivot pins.

You gotta admit the face of the plate casting is remarkably similar.

Edit: Could some genius have adapted a Triumph plate to carry Norton shoes?
 
Sure,

Folks have adapted shoes in the past. It is sometimes a useless excercise unless a particular type is not available. People have also done some strange leading shoe conversions.
 
Hi Guys , No i havnt had any luck with this yet, this has gone on for so long now i am thinking i should just try and source a Bsa Triumph or Norton twin leading shoe plate, trouble is they are getting so expensive still its got to be better than the brake thats on now standard dommie . Brian
 
I have a Commando DLS on my old dommie and it is quite satisfactory to me.
 
So here is a question.
If the brake plate has no pivots on the shoes is it really a twin leader? Surely with contraining one side with a pivot or a half round pivot the shoe would not 'wedge' but 'self centre'?
I remember Triumph did a 'fully floating' brake setup once, I think...
 
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