Mystery brake plate

L.A.B.

Moderator

VIP MEMBER

Joined

Nov 20, 2004

Messages

21,337

• Aug 16, 2009

• #21

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.

Click to expand...

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?

Click to expand...

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

 

Triton Thrasher

Joined

Feb 10, 2009

Messages

3,212

• Aug 16, 2009

• #22

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?

 

C

Cookie

Joined

Oct 5, 2008

Messages

1,684

• Aug 17, 2009

• #23

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.

 

B

brf1957

Joined

May 15, 2009

Messages

100

• Aug 18, 2009

• #24

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

 

Triton Thrasher

Joined

Feb 10, 2009

Messages

3,212

• Aug 18, 2009

• #25

brf1957 said:

standard dommie . Brian

Click to expand...

Can be a good brake. Do you mean SLS? Has the centre hole been bored out to 1/32" bigger than the spindle, as recommended in late manuals?

 

C

Cookie

Joined

Oct 5, 2008

Messages

1,684

• Aug 18, 2009

• #26

I have a Commando DLS on my old dommie and it is quite satisfactory to me.

 

B

bigstu

Joined

Jan 2, 2009

Messages

280

• Aug 20, 2009

• #27

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...

 

C

chris plant

Joined

Nov 6, 2008

Messages

502

• Aug 21, 2009

• #28

hi stu , good question id,e call it a floating tls