However, it has many disadvantages when used with tubeless tires. That's why Peaty's has spent the last two years working on the valve issue and is now presenting an innovative solution in the form of the "Holeshot Fast Flow" valve.

A new take on the valve

The main difference lies in the complete redesign of the valve itself. There is no longer an actual valve core that seals the system. The seals are all located behind the rim, and the valve is opened using a steel pin that protrudes from the top of the valve stem. This design allows twice as much air volume (110 l/min) to flow through the valve as with the Presta system (54 l/min). This open design has further advantages: the sealant can be filled directly into the tires without removing a core, and twice as much air flows through the stem. This means that neither a compressor nor a booster is required to press out the tire; any floor pump will do. The system offers great added value for racing cyclists. If the valve breaks off in a crash or due to stone impact, it remains sealed, allowing the race to be completed without restrictions. The valve is fully anodized inside and out and has a 316 stainless steel core. This means that the sealant adheres less to surfaces and causes fewer blockages. The Holeshot Fast Flow valve is also compatible with all tire inserts. It weighs just 11 grams and is available in 12 Chris King anodized colors. And best of all, Peaty's offers a lifetime warranty. That's it, Presta, bye!