Description

The ST4 & ST5 helmet drink system kit contains three components that are required inside the ST4 & ST5 helmets: bit valve (YA0601), silicone tubing (YA0602) and male coupling end (YA0603) which provides the connection to a Stilo drink bag (YA0605). All 3 parts can be purchased seperately or as a complete kit (YA0600) from the drop

down bar.

The ST4 & ST5 drink bag is required to make the system work. Here’s a link to the Stilo hydration bag: