Park Tool, TS-1, Tubeless Sealant Injector

Take the mess out of tubeless tire setup and removal. The TSI-1 enables you to inject the perfect amount of sealant directly into mounted tubeless tires through the valve stem without removing the bead from the rim. The long, thin tube is able to fit all the way through any Schrader and many Presta stems with removable valve cores, for tidy injection and removal of all injectable tubeless bicycle tire sealants. The oversized syringe body features an easy-to-read gauge with fluid ounce and cc markings for precise application of sealant.

Below is a non-comprehensive list of tubeless sealant formulations that have been tested and shown to work with the TSI-1:

Alienation® Blue Magic
Black Ox®
Bontrager® TLR
Continental® RevoSealant
Maxima Racing Oils®
Muc-Off® No Puncture Hassle
Orange Seal® Endurance
Orange Seal® Regular
Orange Seal® Subzero
Panaracer® Seal Smart
Peaty's
Slime® STR
Squirt® SEAL
Stan's NoTubes® original formula