CAMSHAFT SPROCKET, DRIVES MAGNETO, PRE 1948, SINGLES, 15 TEETH

WE HAVE TAKEN THE OPPORTUNITY TO EXAMINE THE VARIOUS MAGNETO SPROCKETS USED ON NORTON'S ALONG WITH THEIR ASSOCIATED DRIVE SPROCKETS.  AFTER CAREFULLY MEASURING MANY SAMPLES BOTH ORIGINAL AND AFTERMARKET AND CHECKING ON A NUMBER OF MAGNETO'S AND MAGDYNO'S, BTH, LUCAS, STANDARD AND COMPETITION WE HAVE RE DRAWN THEM, TWEAKED SOME DIMENSIONS, IMPROVED MATERIAL AND MADE A CHANGE TO THE HEAT TREATMENT, INDUCTION HARDENING THE TEETH ONLY SO THE TAPER REMAINS "SOFT" ALLOWING IT TO ENGAGE BETTER AND AVOIDING THE SLIGHT DISTORTION THAT HEAT CASE HARDENING CAN CAUSE.  SOME SAMPLES WERE NOT HEAT TREATED AT ALL, SOME FULLY CASE HARDENED.

PRODUCTION WAS THEN ENTRUSTED TO A SPECIALIST UK GEAR AND TRANSMISSION COMPANY.  THE RESULT IS A TOP QUALITY PRODUCT THAT WILL WORK WITH BOTH BTH AND LUCAS EQUIPMENT AND THE LARGE BATCH SIZE (A TOTAL OF OVER 2000 COMPONENTS) ALLOWS US TO OFFER A PREMIUM PRODUCT AT A VERY REASONABLE PRICE.  WITHIN THIS BATCH WE HAVE PRODUCED THE FOLLOWING:

1269A - 18 TOOTH TWIN CYLINDER MAGNETO SPROCKET 
13853 - 16 TOOTH SINGLE CYLINDER MAGNETO/MAGDYNO SPROCKET
13780 - 16 TOOTH SINGLE CYLINDER CAMSHAFT SPROCKET
9066 - 15 TOOTH SINGLE CYLINDER MAGNETO/MAGDYNO SPROCKET
9064 - 15 TOOTH SINGLE CYLINDER CAMSHAFT SPROCKET

ADDITIONALLY WE HAVE DESIGNED TWO VERNIER ADJUSTABLE SPROCKETS, ONE FOR THE TWINS AND ONE FOR THE SINGLES, THESE HAVE THE ADVANTAGE OF ALLOWING TIMING ADJUSTMENTS IN FIXED 3 DEGREE INCREMENTS ALLOWING FOR THOROUGH ROAD TESTING WITH REPEATABLE RESULTS.
THE PART NUMBERS FOR THESE ARE:

RGM 1269TT - FOR THE COMPLETE TWIN CYLINDER, 18 TOOTH SPROCKET
RGM 1269B - TWIN CYLINDER VERNIER BOSS
RGM 1269S - TWIN CYLINDER 18 TOOTH PLATE WHEEL
RGM 13853V - SINGLE CYLINDER 16 TOOTH COMPLETE VERNIER SPROCKET
RGM 13853B - SINGLE CYLINDER VERNIER BOSS
RGM 13853S - SINGLE CYLINDER 16 TOOTH PLATE WHEEL
RGM 13853N - NUT
RGM 13853P - PIN
RGM 13853W - WASHER