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12-volt electric start kit, fits Big Twin 1954-1957 with splined motor shaft
Conversion kits to update kick starter-only Knucklehead and Panhead bikes to electric start. Kits come with replacement inner clutch hub, primary chain and starter assembly. Installation requires cutting of rear fender and outer primary. A 12 Volt charging system, 12V battery, 12V regulator, 12V ignition coil and 12V lighting is required but not included.