PrestaCycle EZ-Grip Big Presta Head

PrestaCycle EZ-Grip Big Presta Head. The Prestacycle EZ-Grip Big Presta Head is perfect for tubeless tires valve extenders and any Presta valve. It includes the improved Mini Presta Head Gasket which is softer more durable and gives a better seal along the Presta shaft for any Presta application.