You are reading a single comment by @Backstop and its replies.
Click here to read the full conversation.
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.
@Backstop
sulphur hexafluoride also has the amusing property of lowering the pitch of your voice on inhalation, the opposite of how helium makes it squeaky