This is 3/8. This is reproduction and has not been used. A little bit of rust on the braking surface.
BSA A7 A10 PLUNGER FRAME GEARBOX GASKET SET BSA 343
BSA A10 A7 spare parts Book 1954-57 Shooting Star R Rocket Swinging Arm Plunger
5 Surflex CLUTCH PLATES Italy BSA A7 A10 plunger C10L C11G C12 3 spring 67-3242
BSA M20, M21, M33, B31, B33 Plunger Rear Brake Drum and Sprocket 42T 65-6294
PAIR 82-9602 BSA A10 A65 Footrest Foot Peg Rubbers A7 A10 A50 A65 B25 B44 C15 UK
BSA A10 A7 Chainwheel Rear Brake Drum 42 Teeth Little or No Wear
