JACO Lightning Tire Air Chuck for Bikes (L3-Series) | Presta & Schrader - 1/4" NPT, 2 Pack

Presta and schrader valves both need to be pressed in, before you lock and screw in to further seal it from leaks. after a month, the chuck can no longer seal due to wearing out of the metal grip

Nicely done chuck upgrade. I wanted something that would work with presta and schrader and work one handed. These fit the bill. Nicely made and finished too (made in Taiwan, so it’s good stuff). The 2 pack worked for me as I had two air hoses I upgraded with these. Takes a minute or two to get the hang of using them, you do have to screw them _on_, at least a couple turns, but they pop off without unscrewing. So not the chuck for a busy shop where you’re doing 50 tires a day, but for a home mechanic these are perfect.

Difficult to screw onto presta valve. Not as described in my opinion.

le seul qui fonctione bien, ne perdez pas votre temp avec d'autre produit ,j'en est acheter plusieur de d'autre marque tous ineffiquace

Worked great for about a year. Then, 1 part fell when using it which makes the device unusable. I bought a 2x pack a year ago for 59 AUD. Today's price: 191 AUD. How come?