They are sharkzilla proof though.
Total overkill unless you're regularly finding drawing pins, nails, industrial staples etc in your tyres.
Sound like it's perfect for a sportive then.
@edscoble 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.
They are sharkzilla proof though.
Total overkill unless you're regularly finding drawing pins, nails, industrial staples etc in your tyres.