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Your cart is empty.Ensure you are prepared whether on the road or the trail, equipped with the essential tools to repair and replace the Presta valve cores on your bike tires. JACO proudly presents the all-new replacement presta valve tire repair kit, your one-stop solution to efficiently replace or repair leaky presta valve cores at any given time, no matter where you are. So, what's in the kit? It's packed with 12 replacement valve cores, 4 robust black aluminum valve dust caps, and a handy valve core removal tool.
Hoffmans_Haven
2025-09-04 14:45:27
I am only a casual rider but needed something to carry in a fanny pack. Too many flats lately. These were recommended to me by a cyclist friend of mine and I am not disappointed. The tool is aluminum, well made, and easy to use. Everything is very light and easy to carry in a fanny pack or seat bag. Valves are well made and don't seem to leak. I would highly recommend this set.
Lew
2025-08-20 13:30:32
I'm lazy and these are easy to install and work flawlessly
Prairiewolf
2025-08-18 18:28:03
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.
C. ROMER
2025-07-30 16:54:26
Great customer service by Jaco on fixing the issue with the original Amazon order (was missing pieces)!I like this presta core kit, and have a Jaco MBX-60 Presta gauge too, as well as the Elite Digital and EliteProPlus Schrader gauges. So I am familiar with Jaco quality. The valves are also quality, both tightening and sealing well. Much better than what came with the tubeless valves. However, the caps will get just a bit over 1 turn when installed on these cores. The top of the cap is too short and narrow. This stops the cap from getting a better fit. I wouldn't expect the caps to stay put with much riding.
Tyler
2025-07-27 15:01:07
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.
Aldo Jose Lopez S
2025-03-12 11:45:33
Satisfied with the valve cores and good looking valve caps. Fast delivery.
Andrew Haight
2025-02-13 10:20:59
Yeah I’m in agreement with many of the others that have had issues with the valve cores. They are very poorly made and become clogged with the gasket on the core which gets drawn into the stem. This eventually causes a situation where the tire slowly loses air but is nearly impossible to inflate. The caps are as others mentioned, pretty much garbage. They are not nearly deep enough to have the threads effectively grab onto the stem.Really the only worthwhile item in the kit is the tool to remove and install cores. But that alone hardly justifies the cost.
William Wallace
2025-01-29 15:56:24
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.
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