they are are old lucas/hella spotties off 70s british cars.
What ever mains cable you have around will be fine.
Note unless leisure batteries, the batteries won't like the cycle, so bank on using older ones.
@lynx started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
they are are old lucas/hella spotties off 70s british cars.