Questions tagged [pump]
Bicycle pumps pump air into tires and suspension forks.
139 questions
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How do I use this pump?
This is my tire valve:
Tire Size: 27X1 3/8
These are my pump parts:
https://www.amazon.co.jp/dp/B009VYEKSO?ref=ppx_yo2ov_dt_b_fed_asin_title
"Supports American, British, and French bulbs"
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Pump doesn't attach to Presta valve
I have a Bontrager pump (one hole for both valve types; I think it's this one). I've been using it for several years with my Presta tubes. I just replaced my tube (the new one happens to be ...
- 11
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What are the disadvantages of a battery powered micro pump over CO₂ inflaters for roadside puncture repairs?
The question What are advantages and disadvantages of CO2 inflators over frame pumps? is over a decade old now. Since it was asked, a new technology - battery powered micro pumps - has become ...
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Is there any way to adjust a "flatlining" pressure gauge on a pump?
At some point my cheapo Bontraeger floor bicycle pump was left outside, I would guess further that my kids submerged it and pumped it up and down for the LOLS. The pump seems to make ok pressure but ...
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What is the name of the floor pump part that depresses the valve stem?
What is the name of the part in the floor pump chuck that depresses the valve stem?
Is it standard enough that I could buy a replacement?
I mainly use this pump to inflate presta tires. From what I ...
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On-bike pump maintenance requirements?
I have a variety of small bike pumps, both mini-pumps like a Topeak Race Rocket and small floor-pumps like the Topeak Road Morph. They live on their bike all the time, and suffer the same vibrations ...
- 138k
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Replacing slow to switch Presta/Schrader pump head with dual pump head on a floor pump. Can I go between brands?
I have a Giyo Air Supply floor pump which has one of those Presta/Schrader switchable heads where you have to unscrew the cap, wiggle out the head's innards for half an hour, turn them around then ...
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Is it a good idea to use a Presta-to-Schrader adapter and Schrader mini pump if you have bikes with both valve types?
I have bikes with two types of valves: Presta and Schrader. Usually when buying bikes or rims, I'm very careful to buy only Presta stuff. If I for some reason end up with a Schrader rim, I may go even ...
- 23k
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Pumps keep breaking
I've now had two floor pumps 'break' in use, a Beto and a Vandorm, the latter on the first use. Both are dual Presta-Schrader. Both 'broke' while attempting to inflate a Vavert 700X28/35C Presta inner ...
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EVO Hurricane Bicycle Pumps - how to remove the plunger?
Most bicycle pumps have screws or twist off the top to remove the plunger, but these Evo Hurricane pumps have a very odd collar with no embedded screws unlike others (see below).
Anybody know the ...
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Is my mini pump broken?
I have a mini pump for my bike - I guess for around 3 years now. It's started to give me trouble recently - it's for a presta valve and it screws on, rather than locks on. For some reason when I ...
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Roadside repair: how to use a screw-on Presta pump on a tube with a removable valve core
I found the question How to keep Presta valve insert from detaching after inflation? but none of the answers are helpful because this happened to me in the middle of a ride on a rental bike. All I ...
- 5,869
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Floor pump pressure gauge shows zero with Dunlop valve, should it be so?
I have a floor pump with the pressure gauge. When I attach it to the the tube having Schrader valve, the gauge shows the pressure. But when I attach it to Dunlop valve, it shows zero at still stand.
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- 8,342
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How to prevent a Presta valve core from unscrewing when disconnecting a pump [duplicate]
My mini-pump has a screw-on head (as I guess most of them do) and several times when removing the pump from the valve, it's taken the valve core out with it.
The last time this happened to me on the ...
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Dunlop valve core comes off with the cap
Could someone please enlighten me if my valve is broken? I think this is a Dunlop valve but the core seems completely stuck to the cap. No matter how much I twist and turn the core always comes off ...
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