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I must be the only person who can't figure how this wee red anodised tool works! Tried screwing it on to my stans presta valve, but it just doesn't seem to thread onto the valve core. What am I doing wrong?! Do you use the other end to remove the pin? Please enlighten me!
Screwing it on?
You just place it on, and turn it. It's basically a very tiny spanner.
If the entire valve rotates, you may need to grip the lower part of the valve with a pair of pliers.
The little end is for Schrader [sp] valve cores
Btw - how tight do cores need to be done up? Are the easily damaged by over torquing?
Large open end over presta valve, small end into shrader valve. They only tighten up finger tight, don't over do them. The sealent works like a locking solution so may be a stiff when removing.
Thanks for clarifying - I'm trying to undo a presta core from its base with the large end, but it spins and will not thread to get any grip ๐
Small adjustable spanner on the flat bits or if you're careful pliers. Don't need to be any tighter than finger tight with the tool.
You don't thread the tool on, just place it over the removable part of the presta and screw anti-clockwise. Grip the valve stem with some long-nosed pliers if the whole lot spins
When I place the end over the core it just doesn't grip anything and turning it clockwise or anticlockwise, nothing happens - perhaps I have a dodgy one? Yep wwaswas, trying to move that silvery core equivalent from the outer so that I can squirt sealant in. It is so easy to remove the core with pliers though, I think I might just resign myself to carrying a pair round with me anyway - I needed a set to remove the presta lockiring nut when I was out last week at kirroughtree and I lost all the air from my rear tyre and had to replace it with an inner tube - thankfully a v helpful German guy appeared as if from nowhere 2 mins later with a set - you can't be too prepared in this game.
Took it to another couple of bikeshops and all agree that there must be a bit missing or it has been cored out too much as there is nothing to bite the sides of the core as you remove it. Anyhow might be the excuse I've been looking for to get a leatherman squirt ps4 which has a v handy wee set of pliers. thanks for your help guys.
Ha, yes, that was an odd one - definitely machined wrongly ๐
Or the valve doesn't have the flat bits because it doesn't have a removable core - yes, such valves do exist.
Hi - I have been using pliers too and a small tool would be useful as the flats of the core do get rounded eventually.
Before going tubelass & using Stans valves I used to use the schwalble tubes with removable presta valve cores with stans no flats sealant. This worked a treat and on changing my winter tyres (mud) to summer ones there were always pinned to the tubes with many thornes... I have also put stans fluid in tubes with schrader valves (car type ones) which also have the removable valve.
I carry a spare tube for emergencies and pliers to undo the small nut holding the tubeless valve in the wheel as this is in tight & diffficult to undo in the area around the spokes.
Where is your little valve core tool from Jack?
John
I've been tubeless a few years, and always carry a Leatherman type plier tool - only way to get the valve locking ring off.
[i] last week at kirroughtree and I lost all the air from my rear tyre and had to replace it with an inner tube -[/i]
Why didn't you just pump it up? Or hadn't it enough sealant - I also carry a couple of co2 cannisters in case I need to 'blast' a tyre on.
I use a spare link off a chain - fits the flats on a Stan's valve perfectly.
EDIT: well 9 speed does anyway.
Cheers guys! @br not enough sealant - lost air faster than it went in. When I tried to reseat the tyre interestingly the air compressor at the bike shop failed, but a wee handheld co2 canister worked beautifully, so going to purchase one soon. Ended up buying some spare presta cores which came with the wee plastic spanner Mr Hardcore suggested. Cheap and works a treat.:-) Will try the chain trick out of interest.

