Review on JACO Lightning Presta Schrader Valves by Mark Harris

I bought this and replaced a Schrader nozzle on an old blower with a 3ft PVC hose and some quick disconnects. A little overkill, but that's all I had for spares. The fitting will let air through when you attach it to the presta valve, but since you're probably going to inflate the tire anyway, I don't see that as a big issue. deal with it. The airflow through this faucet is phenomenal. I went from 5psi to 60psi in seconds on my homemade 26 inch tubeless tires. MAKE SURE TO SET YOUR POWER OUTPUT REGULATOR PROPERLY or you will likely pop the tire off the rim. It's also just good practice for safety. As far as I can tell the quick connect is quite comfortable with little or no air loss. You can hear air escaping when disconnecting, but that's probably due to the hoses. Attaching a pressure gauge to the tire shows no noticeable loss. I will update this review over time as I intend to use it long term.