JACO Superior Products Presta Valve Core Repair Kit for Bike Tires | with (12X) Replacement Valve Cores, (4X) Valve Caps, and Valve Removal Tool

Works as advertised.

No negatives , very pleased!

Good value works as it should. Quality sufficient.

I used one of these valves to fix an iner tube that failed after 2 years. The tool makes it easy to remove and install. I would recommend.

my tires kept loosing air. Replaced the valve stem and solved the problem. I believe the gasket on them dries out and creates the problems.

I keep this on the bike with a few valves. The valve tool comes in vert handy as the valves tend to loosen. I carry extra valves just in case they are needed on the road.

Saw this in another review and can confirm that the little black valve stem caps only thread on about 1 turn, they aren't long enough and interfere with the valve stem itself. after 1 ride they will vibrate off and be gone forever. Also, the valve core rubber seal will not sit right when you tighten the knob. and last but not least, when you unscrew the knob to let air in/out, the little knobs will come completely off and you are SOL. not all valve cores do this, but most did. The only useful tool is the core remover, so at $10, it's not a deal. I like Jaco, but after a failed presta valve gauge, a lightning quick release that doesnt work properly and now this, i'm no longer buying jaco products.

I ordered at least 3 different packages of presta valves before finally finding these. All of the others were cheaply made, with protruding moulding seams that prevented them from easily or fully seating in the valve stem. These JACO valve stems are perfectly moulded. They have high quality seals and easily thread into all of my presta valve stems. The included tool and caps are also high quality and function well. I have been very happy with all of my products from JACO. They have great customer service and repair guides/videos for their tools and gauges.