NORTON BRAKE DRUMS & REAR SPROCKETS

Nortons pre Commando all use narrow rear chains: 5/8"x 1/4". But sometimes you'll find drums for wide chain 5/8"x 3/8" . The later AJS and Matchless (60's) use Norton wheels with a wide chain. Commando's had wide chains. So please check before you order.
Wide is about 9mm, narrow about 6mm on the sprocket teeth.
Thread on the studs is usually 3/8CEI (26TPI), but Commando drums have 7/16 UNF (20TPI) thread.

DRUM 3 STUD UNF WIDE CHAIN

06-0319

Commando pre 1971
British Made
Needs 3 nuts 06-0323

One available new with one stud lightly damaged, but perfectly usable. Complete with the 3 nuts 06-0323.
British made. € 90

COMMANDO BRAKE DRUM

06-2764

Commando 1972 up, paddle type.
Rubbers: 06-2074, 06-2075
British Made. Top quality.

REAR SPROCKET MK3

06-6011

REAR SPROCKET MK3

06-6011E

Low budget sprocket that will work.

RIBBED BRAKE DRUM

B4-463

Fits plunger frame Nortons and some of the racers.

BRAKE DRUM 16H

NME2/463

Fits many prewar and postwar Nortons.
British Made. Very nice quality. Studs 7/16 x 26TPI. Uses narrow 5/8 x 1/4” (520) chain.
Was part number 9518, D2/468, E2-463