Norton solid drive sprocket, to replace mechanical advance unit (ATU).
Fits Norton twins.
Use with our magneto replacement housing, as supplied with Sure-Fire/Smart-Fire Pre-Unit Twin Ignition Systems. Fits onto the taper on the magneto replacement housing, or Lucas K2F type magneto.
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Excellent after-sales technical support is available by email, fax and phone
(09:00-17:00 Mon-Fri).
7½ year warranty
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