When the included chuck is on the valve, does it let air flow out of the tire via a bleed valve on a pump? When I air up tires, I go some PSI higher than target, then bleed it down to the target pressure. The typical presta valve chuck keeps the valve open so that this works. I’ve been a long time presta valve user with no real complaints but if the Clik Valve allows bleeding, I’d be inclined to give them a try. I emailed Schwalbe and after 4 exchanges the individual responding still did not understand the question.
Not sure if I get your question.
I have Clik Valves on our bikes now, and basically you fill them up to the exact pressure you want and then pull the pump. They do not really loose air unlike presta valves at that moment
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Let me start by saying I don’t know the answer. I’m just trying to be helpful.
Does you pump allow you to do this on Presta? and how about Schrader?
This video, at about 10:42, appears to show that Clik valves behave like Schrader, in that you need to depress the inner core (poppet?) to release air.
But - when the pump is attached to the tube, and you begin to inflate - the tube, Clik valve, pump head, and pump hose may act as one single pressurized system, which might change everything.
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Yes
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Yes. There is a pin/protrusion in the chucks I have the keep the center pin of the Presta or Schrader valve depressed when it’s engaged, This lets air flow both ways. It’s the same on high pressure pumps that connect to schrader valves on bike suspension forks and shocks. These pumps have bleed valves to facilitate accurately setting pressure. It’s not unusual. For example, the Park Tool tire inflator has a bleed button below the gauge for this purpose. The Prestaflator has a brass bleed button on the side of it.
And for a shock pump example, here’s the Silca shock pump with a bleed button on its side below the gauge.
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From how I understand the system and my own (limited) experience with it so far: as soon as the pump head or any other clik adapter is put on the valve of the tire, it is open and will remain open until disconnected. This caused me a few initial surprises as I use an adapter instead of a dedicated clik pump head and opened the lock on the head instead of pulling off the adapter initially. As the adapter kept the valve open, this instantly deflated my tire.
Hope this answers your question if the valve is open and allows to bleed the system
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Thanks. From the responses it seems the chuck holds the valve open which is what I was asking and would prefer. So, do you all feel they work well? Prestas work well for me but it seems these would be a little more convenient.
Yep, with the Clik adapter on, it keeps the valve open so you can bleed pressure down using your pump’s bleed button. Just make sure you pull the adapter off before you undo any locking lever on the pump head or you can dump air fast.
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