You are reading a single comment by @skydancer 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.
@skydancer
http://www.bbc.co.uk/news/science-environment-29207644
(Article also mentions walking and cycling)