Nitrogen can't escape as easily as oxygen so the tyres (should) hold pressure for longer. That's how they try and sell it for use in car tyres anyway.
@colr 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.
Nitrogen can't escape as easily as oxygen so the tyres (should) hold pressure for longer. That's how they try and sell it for use in car tyres anyway.