Introducing MucOff's V2 Tubeless Valves with a new Tyre Insert Air Flow System. Featuring 6 slots machined into the base of the valve stem allowing them to be compatible with most tubeless tyre inserts and allow your tubeless sealant fluid and air to flow freely when running tubeless tyre inserts. They have also upgraded them to aircraft-grade 7075 aluminium to be lighter and stronger than before!