Install and maintain tubeless tires easily and mess-free, without clogged valves. milKit makes the tubeless conversion clean and simple. All the necessary products and solutions for converting mountain bike, gravel, or road bike tires are available in the milKit program. The innovative milKit valves with additional rubber flaps no longer clog and allow for measuring and refilling the sealant without releasing pressure from the tire: install the rim tape into the rim, install the milKit valves into the rim and remove the valve core, inflate the tire with the milKit Tubeless Booster - the air stays in the tire thanks to the rubber flaps on the milKit valves, inject sealant with the milKit syringe through the milKit valve into the still-pressurized tire. It's that simple: install the valve core and inflate the tire to full pressure until it fully seats on the rim. Enjoy the ride. The milKit syringe holds 60 ml of sealant and is connected to a flexible extension with the milKit needle. The needle can be inserted through the rubber flaps of the milKit valves without letting air escape from the tire. The tap on the flexible extension allows for regulating the flow of sealant from the tire into the syringe.