Peatys Holeshot Fast Flow valves are built specifically for modern tubeless setups. Instead of relying on a narrow Presta-style core in the airflow path, the Fast Flow design moves the sealing mechanism inside the rim so air and sealant can pass straight into the tyre.
Fast Flow Tubeless Design
Peatys claim double the airflow compared with their MK2 Presta valve, with a design that is far less prone to sealant clogging. That makes the valves particularly useful for higher-volume MTB tyres and tubeless inserts.
Useful Trail-Side Details
The valves use a 7075 aluminium shaft and stainless steel core, with practical cap tools including an e-bike lube cap and spoke key cap.
Choosing A Size
42mm suits most MTB, urban and XC rims. 60mm is a good fit for deeper road and gravel rims. The MX option is for Bosch e-bike setups that need the external speed sensor magnet compatibility.
