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 UNF (24TPI) thread.

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BRAKE DRUM AJS/MATCHLESS 5/8 X 3/8" CEI
03-0052
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Norton brake drum for wide chain and CEI (26TPI) studs. Was used on 1960's AJS and Matchless with Norton wheels and can also be found on Nortons that use a wide chain.

BRAKE DRUM WIDE CHAIN, UNF STUDS
06-0319
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Commando pre 1971

COMMANDO BRAKE DRUM
06-2764
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Commando 1972 up, paddle type.
Rubbers: 06-2074, 06-2075

REAR SPROCKET MK3
06-6011
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REAR SPROCKET MK3
06-6011E
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Low budget sprocket that will work.

RIBBED BRAKE DRUM
B4-463
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Fits  plunger frame Nortons and some of the racers.

NORTON DRUM
NM50245
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Featherbed type rear 3 bolt drum, 3/8CEI thread, narrow chain, 5/8 x 1/4".
Uses nut 06-7703 

BRAKE DRUM 16H
NME2/463
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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

REAR BRAKE SPRING
06-7607
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Fits all Norton rear brake drums.
Old number NME5832