Park Tool TSI-1 Tubeless Sealant Injector Box Pack while still passing our strict

while still passing our strict internal MTB strength test

The cushioning is slightly softer and more progressive than the type we use on our racing saddles

Wide rims optimize tire profile to allow lower tire pressure

(11:32) cassettes

Park Tool TSI-1 Tubeless Sealant Injector Box Pack while still passing our strictTake 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 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