Tubeless bike tires and rims were introduced 20 years ago yet tubeless systems still use the Presta valve standard. The clearances in a Presta valve are smaller than the holes that sealant is supposed to be able to block so it's no surprise that the valves get clogged.

• 'No Clog' internals - Greatly increased clearances prevent sealant build up.
• 4x greater air flow (compared to Presta) - Fill the tire faster to help seat and seal the bead.
• Inject sealant directly through the valve centre. Although we still recommend adding sealants with particles directly into the tyre.
• Compatible with standard rims and holes for Presta valves.
• Lightweight at just 9 grams a pair.
• High precision CNC machined aluminium.
• Come supplied with spacers to allow fitting to different rim heights.
• Completely rebuildable for cleaning.
• Compatible with rim inserts.