JACO Lightning L3-Series Bike Tire Air Chuck for Presta & Schrader Valves - 1/4" F-NPT (Open Flow) (Pack of 2)

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.

I almost didn't buy this pump chuck because it was listed as a frequently returned item, and honestly, if something's going to be a dud, it's usually the thing I pick. But I'm so glad I took the chance this time! I recently bought a new bike with a Presta valve, and after a lifetime of using Schrader valves, I was completely stumped. Pumping up my tire became a frustrating ordeal. That's when I found this Jaco chuck on Amazon, and its versatility for both valve types immediately caught my eye. Despite a few reviews suggesting it was difficult to use, I found it incredibly functional. Switching between valve types was a breeze, and the quick-release feature is an absolute game-changer. I was skeptical about the quick release working since the instructions mentioned screwing it onto the valve, but I was wrong — it couldn't be easier! Jaco's patent mentioned in the product description must truly be valuable because this feature is a lifesaver. If you're struggling with different valve types, especially Presta, this chuck is a must-have.

I was sick of the cheap plastic inflator head on my air compressor tire inflator. It didn't seal well and made it difficult to set precise air pressure in my presta valve bike tires. This chuck is all metal and looked to be high quality and more durable. There is a bit of a learning curve to using it properly, but there are nice full color instructions included. Once properly screwed onto a presta valve it seals tightly and does not leak. It easily and quickly detaches when done by pulling back on the blue collar. The directions say to twist the collar on 2 or 3 turns to seal it to the valve, this is correct, but that's full turns, so more like 5 or 6 half turns when you're trying to screw it on with one hand. For the price, I wished they included some 1/4" male to barb fittings to be able to attach these to the end of a hose that doesn't already have a male 1/4" fitting. I also wish there was an option to purchase one at a time for half the price. I only needed one, but at least I have a back up now. This is probably the best tire valve air chuck design I've used so far, but it's still not perfect. You really need to screw it down tight or it will leak with slight side to side movement and you have to make sure you quickly pull the chuck straight off when you're done or it will leak. I will update this review if I have any durability issues. The only thing I can think that would wear would be the internal rubber o-rings. I have also not tried it on schrader valves, only presta.

Connects easily to my compressor air chuck for bikes (Jayco digital air Chuck) and locks on firmly with no air leakage, unlike other Presta lever locks. This is the real way to do it right the first time….

I have been using a JACO analog tire pressure gauge for years with not problems. So, when I saw the digital 200 PSIG air gauge and bike tire adaptors at such a great price, I purchased them. FRUSTRATION, FRUSTRATION and more FRUSTRATION for the get-go. First the sealing O-ring on the end of the braded hose will only seal the original Shrader fill/clip. Second the really cool chrome and blue air chucks do not grip the bike tube Pristas valves thigh enough to hold air. It's an air leak mess, impossible to fill modern bicycle tubes or tubeless tires. The sealing O-ring on the braded hose does not seal the chrome/blue P/S air chucks. Good idea but poor design and quality control. JACO you should have sent a few of these out to your valued customers to do a little testing before you gave them to the general public. P.S. I'm keeping the digital air gauge, great product, it works flawlessly on automotive tires. And with a Prestia to Shrader screw on adaptor from my local bike shop the digital air gauge/fill works great topping off my road bike tires.

Ok so far. Aired up MTB and car tires with some hassle, will update soon. Update: I returned this set because it leaks on SHORT presta valves. It worked fine on long presta valves. You probably don't need 2. Overcharging for chucks you don't need is unnecessary. Sell them 10 each instead of 2 for 20. Mfr asked to contact them, but the link doesn't work for returned items. I have not used the $30 Silca chuck so I can't compare them unfortunately. If this was $10 it would probably be an easy buy over Silca though. I got the full set of JACO chucks to try their automotive ones. Same issue: Presta chuck leaks only on a SHORT valve stem. It holds long enough to fill it up, but if there's any sideways pressure on the chuck it will leak. I also noticed the 'quick release' sleeve of the second round of purchased worked way better than the first. They were stiff and hard to move in the first set of chucks I received. Possible QC issue.

This JACO L3 Tire Chuck exceeds my expectations, is well designed and fits tightly onto both Schrader and Presta valves with no air loss. I love the package includes two. I have one installed on my garage air compressor hose with an Azuno digital guage that works great and adds flexibility. The have the second one installed on my bike hand pump, and it has proven it worth being easily changed between Schrader and Presta valves for other riders in our group. Thank you for a great - but not well known - versatile tire chuck. An Amazon purchaser and user in SOCAL. Bike rider at 78. SW

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

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?

These don't work very well with presta valves. They need to be screwed on a few turns before they seal which can result in the valve core unscrewing or a large amount of air loss which can be very messy when dealing with tubeless bike tires that contain sealant. Tried to return them but the seller never responded request so now I'm stuck with them. Guess I'll give them to someone I don't like ;-)