What Is the SILCA Ultimate Sealant Injector and How Does It Work?

The SILCA Ultimate Sealant Injector is a 2oz precision syringe designed to add or top up tubeless sealant through the valve stem without removing the tire. It threads directly onto the valve core removal tool after the core is extracted, allowing you to inject the exact amount of sealant needed without spilling, without a funnel, and without fighting a flapping tire bead. The measured barrel markings let you dispense a precise volume per tire — 60ml for road, up to 120ml for mountain — rather than eyeballing it from a bottle.

Compatible with all SILCA tubeless sealants and any standard Presta valve. The injector eliminates the mess and guesswork that comes with syringe-less sealant installation. For anyone who runs tubeless on multiple bikes or tops up sealant regularly, it's the tool that makes the process clean and repeatable. Made in the USA.