i got a new presta chuck and am quite pleased with it:
JACO Lightning XP
it comes with two pieces: a 1/4" FNPT x F schrader adapter and the QC presta head.
the adapter has a swivel in it. the M schrader part of the presta head is pretty short, so it might not seal very well on other accessories.
for example, the M schrader part of the head can't just be snapped into my
LockNFlate QC schrader chuck because that tool relies on the face of the M schrader pressing against a rubber washer that is set inside too deep to reach. i was disappointed at first because it feels like i'm forced to keep a redundant accessory, but turns out i actually prefer having the swivel feature anyways
so that's what it looks like all together. the jaco head, jaco swivel adapter, a brass 1/4" x schrader, my locknflate, a second brass 1/4" x schrader, and then my inflator hose.
it looks like a lot of **** stacked together, but it grabs the presta valve so well that it doesn't leak even with some torquing from gravity. also, a lot of it's aluminum, so it's not as heavy as it seems. i'm very happy with it.
i have the
dewalt DCC020I inflator which has a compartment on the side for a cigarette lighter cord that lets you use the inflator if you don't have a battery plugged into it. i never use it that way, so i took the cord out and keep the jaco presta in there:
i also have the
silca hiro side-lever preta chuck:
franky, this thing ***** ***. it's fiddly, and you have to adjust the gasket preload so that it doesn't leak but is still possible to slide it on. i think it's a tight window, the lock lever itself gets in the way of spokes, and it also doesn't handle torque very well. if the hose is torquing/tilting it due to gravity, it leaks. i have to hold it straight on there while filling to get it to not leak sometimes.
i see silca also makes a QC style one (
SILCA ALUMINUM PRESTA CHUCK):
i should have gotten that thing instead of the lever one. have no idea why i didn't. maybe since the lever one is more expensive, i figured it would be the better tool. idk.
does anyone have both the silca QC and the jaco lightning xp? i wonder which one's better just in terms of QC action and not leaking.
even though i have't tried this silca, i think i prefer the jaco because 90° + swivel works better for me and seals well enough for me.