Presta valve? You need to screw them back up (see that little bit on the end that spins?). Say NO to valve caps!
@hippy started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
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Presta valve? You need to screw them back up (see that little bit on the end that spins?). Say NO to valve caps!