THE CANNONBALL ELECTRIC START SYSTEMS FROM W&W
SSC
In the SSC series (C stands for clutch) the starter motor engages in the pinion of the clutch hub. Available for Big Twin models 1937-54 (SSC-E, E for Early) and 1955-57 (SSC-L, L for Late)
SSK-R and SSK-S
In the SSK series (K for Kickstart) the starter motor intervenes in the original kickstart mechanism. Available for models with rigid frame (SSK-R, R for Rigid) and swing frame (SSK-S, S for Swingarm)
Watch in the video
[embedyt] https://www.youtube.com/watch?v=WYlCvqbP0YM&width=860&height=484[/embedyt]External web link to W&W
Photo credit: W&W