Rear Wheel Sprocket/Brake Drum 42T. BSA A7/A10 1957-61. Early A50/A65.1962-64. Not all modles. 4 Bolt Disc. Chain 110-056. Chain 530. 5/8 x 3/8.for full width cast iron hub Made in England.
Norton Big End Bearing 350/500/600/630cc - measurements see pictures/techn. data Alloy cage Made in England 350cc O.H.V Models: 1933-63: 50 Con-Rod Casting Number: E8852