Sunbeam S8 and BSA B31 front brake plate

[yjr32]

I understand the BSA B31 and Sunbeam S8 have identical and interchangeable front brake plates. I also learnt that there are two versions in BSA B31 front brake plates, an older version and a later improved version. What is the difference between these two types? Are they interchangeable? What are the advantages in the later type? Where can I source the later type brake plate?

Janardhana Rao.

[BEAMA]

HI,
    TRY:-
                        ONTHEBEAM.CO.UK
THE SUNBEAM FELLOWSHIP IS FOR S7 & S8 MOTORCYCLES.
( NOT MARSTON SUNBEAMS ) AND ARE VERY HELPFUL.

BEAMA