Does depend on the tyre quite a bit, some rely on sealant to make airtight, some have a bit more rubber all around the inside.
@snottyotter 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.
Does depend on the tyre quite a bit, some rely on sealant to make airtight, some have a bit more rubber all around the inside.