You are reading a single comment by @Hovis 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.
Hovis
Tailpipe emissions shouldn't be unaffected much if at all by ambient temperature, but sunlight can transform them into more unpleasant secondary pollutants.