Stan's Standard Rim Strip
Install this Rim Strip on your Standard or UST Rim. This will make your rim and tire air tight and also create a second inner seal, besides the bead lock. This allows you to run a lower tire pressure than any other tubeless system while gaining increased traction and control.
This rim strip has a Presta valve stem with removable core. It will fit most standard 24 inch and 26 inch, 21.5 - 25mm wide mountain bike rims.