Magnets... :)
http://www.ctc.org.uk/file/public/feature-hub-dynamos.pdf for your bed time reading
(unfortunately the Novatec is not in it, but it's a nice primer on how to evaluate the hubs)
Thanks!
@Skülly started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
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Magnets... :)
http://www.ctc.org.uk/file/public/feature-hub-dynamos.pdf for your bed time reading
(unfortunately the Novatec is not in it, but it's a nice primer on how to evaluate the hubs)