Frame pump with flexible valve
#1
Newbie
Thread Starter
Frame pump with flexible valve
Good day:
I carry a Zefal HPX-4 frame pump on my Disc Trucker as depicted here. I'm looking for a similar frame pump with a flexible length of hose for the valve connector. This pump just affixes to the valve step. It's rigid and (knock wood) it's only happened once where I wasn't minding my aggression and I snapped the valve stem as I was filling a tube after a flat. Whoops. I always carry at least two tubes so I was good, but I'm just looking to mitigate the risk.
My bike has Presta valves, but I'd like the ability to swap to Schrader, as I often stop trailside and help folks get going again and I like options.
I carry a Road Morph on my other bike and it's fine pump, but I'm looking to see if I can find anything that fits on the nub that's underneath my top tube. My top tube is around 550mm, FWIW.
If there's a better forum to solicit ideas on this, let me know. But bike wrenches usually have a good, broad view of what's out there.
I carry a Zefal HPX-4 frame pump on my Disc Trucker as depicted here. I'm looking for a similar frame pump with a flexible length of hose for the valve connector. This pump just affixes to the valve step. It's rigid and (knock wood) it's only happened once where I wasn't minding my aggression and I snapped the valve stem as I was filling a tube after a flat. Whoops. I always carry at least two tubes so I was good, but I'm just looking to mitigate the risk.
My bike has Presta valves, but I'd like the ability to swap to Schrader, as I often stop trailside and help folks get going again and I like options.
I carry a Road Morph on my other bike and it's fine pump, but I'm looking to see if I can find anything that fits on the nub that's underneath my top tube. My top tube is around 550mm, FWIW.
If there's a better forum to solicit ideas on this, let me know. But bike wrenches usually have a good, broad view of what's out there.
#2
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IMO you won't find a better frame pump than what you have. To prevent damaging the valve, position it at the top of the wheel and stabilize the wheel, valve and pump with one hand, operate the pump with the other. I don't have a pump peg so I use a Lezyne mini pump with a hose. The hose presents it's own set of problems because it threads onto the stem. Sometimes the valve core will loosen as the hose is unscrewed.
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#3
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I have fixed a few flats on the side of the road with LEZYNE Sport Drive HV Bicycle Hand Pump. Works great.
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
#4
Newbie
Thread Starter
IMO you won't find a better frame pump than what you have. To prevent damaging the valve, position it at the top of the wheel and stabilize the wheel, valve and pump with one hand, operate the pump with the other. I don't have a pump peg so I use a Lezyne mini pump with a hose. The hose presents it's own set of problems because it threads onto the stem. Sometimes the valve core will loosen as the hose is unscrewed.
#5
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You don't need to put the wheel back on the bike. I probably didn't describe it properly. Hold it however is comfortable and you can get a solid grip on everything.
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#6
Senior Member
Lezyne mini pumps FTW - flexible swappable (Presta/Schrader) head that lives conveniently in the pump with a way smaller footprint of your old school baton frame pump. Comes in either HP or HV so select based on your intended use. They're the only mini pumps I use now and I've had many since the 90s. Avoid the digital pressure gage versions - those tend to crap out after a while. Stay analog!!!
#7
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For me the optimum combination is a mini-pump used to do the initial inflation to say 20 psi just to assure the tire is seated and the tube holds pressure. Then I use a 16gm threaded C02 cylinder with a screw on valve head to bring the tire to full pressure. Much less work and no threat to the valve stem. Those cartridges are obscenely expensive if bought at a bike shop but not bad if bought in boxes of 20 or so from Amazon. My mini-pump, the CO2 valve and three cartridges weigh less than a Road Morphe.
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I really like the valve on the Silca Tattico, but it doesn’t do Schrader valves.
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I've never used one but Lezyne also makes frame mounted "floor pumps" with screw on hoses
https://www.backcountry.com/lezyne-m...xoCks4QAvD_BwE
By the way, on that Zefal pump I grab the base of the pump with my left hand than loop my thumb over the top of the tire. That not only prevents shear forces on the stem but it allows pushing the stem out of the rim hole to get a better grip.
https://www.backcountry.com/lezyne-m...xoCks4QAvD_BwE
By the way, on that Zefal pump I grab the base of the pump with my left hand than loop my thumb over the top of the tire. That not only prevents shear forces on the stem but it allows pushing the stem out of the rim hole to get a better grip.
#10
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Mine has the bleed button but that didn't help. The threaded chuck still caught the valve stem and unscrewed it completely.
#11
Sr Member on Sr bikes
I had the same problem, breaking stems, with traditional static-head frame pumps. Then I saw this Schwinn pump in a department store and thought I'd give it a try. The head/hose retract into the pump piston rod. The head is both Schreader and Presta. No more broken stems, and I'm able to pump a road bike tire up to desired psi. I wish I had gotten several of them...one for each bike. I've never seen them again, and can't find it on the interwebs. There are no other identifiying markings on it...i.e. part number, etc...just the SCHWINN name.
FWIW...I have also made my own extension hoses using a Schreader-Presta adapter, the the Presta valve stem from an old tube...and some good glue that have worked. But, broken valve stems is also part of the reason why finally started carrying a CO₂ inflation system with me.
Dan
FWIW...I have also made my own extension hoses using a Schreader-Presta adapter, the the Presta valve stem from an old tube...and some good glue that have worked. But, broken valve stems is also part of the reason why finally started carrying a CO₂ inflation system with me.
Dan
#12
Banned
BITD We Hung the wheel from the pump with valve at 12:00 so not pushing the valve stem sideways
the pump head can have something behind it..
A more careful technique can be learned..
the pump head can have something behind it..
A more careful technique can be learned..
#13
Senior Member
I have good luck with this one and it is repairable when necessary(once in 20 years).
https://www.topeak.com/us/en/product...-morph%C2%AE-g
https://www.topeak.com/us/en/product...-morph%C2%AE-g