If you ride tubeless, then you never really know how much sealant is left in the tyre and if the consistency is still rideable. With the help of the milKit, you can solve this problem easily. Using the two way syringe system, you can find out how much sealant is in your tyre and what consistency it is without breaking the bead. You can also replace or refill it using the same system. Below you will find milKit and a replacement valve kit.