Jonathan[/quote
+1
... although I notice that whoever assembled mine presumably did so without a JIS-style screwdriver tip
An easy to use track pump head?
-
keyboardmonkey
- Posts: 1153
- Joined: 1 Dec 2009, 5:05pm
- Location: Yorkshire
Re: An easy to use track pump head?
[quote="Jdsk"]SKS MV head:
Jonathan[/quote
+1
... although I notice that whoever assembled mine presumably did so without a JIS-style screwdriver tip
Jonathan[/quote
+1
... although I notice that whoever assembled mine presumably did so without a JIS-style screwdriver tip
Re: An easy to use track pump head?
I am on my second one of these simple but robust Topeak heads
https://www.sjscycles.co.uk/pumps/topea ... d-wo-hose/
the first one having become a slight bit leaky after about ten years (very rough guess) of being used for all the family's bikes and the tyres on our cars. Like any pump head, it works best when you have the knack. If you plonk it roughly and angled over a presta valve it will catch and let air out, so you learn not to do that. You also learn to press the top of the valve to break the seal before putting the head over it. But when you have acquired the little finer points of use, it is a head that works well, and has a long lifespan. If you can use a Zefal HPX without major issues, you can use this.
For the OP, I don't honestly know for sure if this will make things easier, but in its favour this pump does have a nice flat surface on a relatively long metal lever, though the last 10% or so of the lock does require a bit of pressure, possibly with the heel of the thumb.
https://www.sjscycles.co.uk/pumps/topea ... d-wo-hose/
the first one having become a slight bit leaky after about ten years (very rough guess) of being used for all the family's bikes and the tyres on our cars. Like any pump head, it works best when you have the knack. If you plonk it roughly and angled over a presta valve it will catch and let air out, so you learn not to do that. You also learn to press the top of the valve to break the seal before putting the head over it. But when you have acquired the little finer points of use, it is a head that works well, and has a long lifespan. If you can use a Zefal HPX without major issues, you can use this.
For the OP, I don't honestly know for sure if this will make things easier, but in its favour this pump does have a nice flat surface on a relatively long metal lever, though the last 10% or so of the lock does require a bit of pressure, possibly with the heel of the thumb.
Re: An easy to use track pump head?
I think the topeak twinhead is a good design too. You can get a chuck that works the same way in decathlon for about half the money, but it may not be as good and the spares supply may be less good too.
NB Topeak also made cheaper, probably less good versions of the twinhead design; these feature a plastic locking lever rather than a metal one.
cheers
NB Topeak also made cheaper, probably less good versions of the twinhead design; these feature a plastic locking lever rather than a metal one.
cheers
-------------------------------------------------------------------------------
~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~
~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~
An easy to use track pump head?
Mick F wrote:Lezyne Airbleed.
The airbleed is for bleeding the pressure from the hose.
Screws on easily.
Pump to required pressure ......... Mercian rear sits at 120psi and Moulton rear at 100psi.
Press the bleed button to release the pressure in the hose only.
Unscrew easily.
Hardly any friction in screwing or unscrewing.
--------------------------------
Told this story before.
I had a track pump some time back and heard all sorts of good news about the Topeak Twinhead. so I bought one and fitted it.
It lighter and easier to use than the original.
Then, I realised something.
It took me a few years before I saw the light.
When you connect up and fill the tyre to nice and hard at 100psi plus, when you release, some air is lost from the tyre.
Repeat a few times connecting, and disconnecting, and slowly you'll end up with a soggy tyre.
Easy to experiment.
Pump to required pressure and remove, then connect a pressure gauge to measure.
Repeat.
You will find that the pressure is now reduced.
Try that with the Lezyne Airbleed, and you'll find no such issue.
Ok, you might say that my Topeak was defective .......... and that's what I thought, so I bought a new set of seals for it. Same issue persisted.
No doubt they are fine at "normal" pressures, but when you want 100psi+, the unit needs to be on firmly so it doesn't blow off. Consequently, the Presta valve is opened a tad so when you disconnect, a bit of air escapes.
So what?
Does it matter?
I mattered to me, so I chucked it away.
That's because it pushes down on the valve stem, unlike the Lezyne. I find if you push it on not too far, it won't crack the valve until the locking lever is applied, and thus you will lose little air. I like this kind of pump head better because you don't have to overcome a sticky valve and you can bleed air from the tire.
