Muc-Off V2 Tubeless Valve Kit - Gold 60mm PairMuc Off V2 Tubeless Valve Kit Gold 60mm Pair. V2 Tubeless valves are stronger lighter and even easier to use thanks to the machined aircraft grade 7075 aluminum and Muc Offs new Tire Insert air ow system. The new design features six slots that are machined into the base of the valve stem allows tubeless sealant uid and air to ow freely even when running tubeless tire inserts. 7075 Machined Aluminum valve stem and cap Tire Insert air flow system keep