Gearbox Sprocket AMC, Norton 22T.
Norton 16H, early ES2, Mod.18,
Big Four, 7, 77, 88, M50, 40, 30, Dominator
Fits Chain Size 110-054 (520) 5/8" x 1/4"
TOTAL width: 13 mm
For Dolls Head Gearbox
Gearbox Sprocket Rigid/Plunger 17T. BSA B31/B33
Rigid & Plunger 1946-57
with oil seal
Please see measurements last picture or technical data
Chain 5/8 x 1/4 110-054-.. (520)
1949 to 1958
M20 500 S.V. 1949-1956
M21 600 S.V 1949-1958
M33 500 O.H.V 1949-1957
Made in England