I'm pretty sure they are coated with something and not just rusty.
Correct, one of them fancy PTFE coated cable that make everything slick.
@edscoble 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.
I'm pretty sure they are coated with something and not just rusty.