BSA/Triumph Gearbox Sprocket 13T. B44. TR25.

s92). 57-4306.13T.

Gearbox Sprocket 13T. BSA B25 B44 B50
Triumph TR25.
Chain 110-054-... (520)

Chain Size 110-054 = 520.
5/8 x 1/4"

Made in England

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