dwndpump Mini Bike Pump, Electric Bike Tire Pump Max 100 PSI, Portable Bike Air Pump with Presta and Schrader Valve, for Road Bikes (No Pressure Gauge)

I am using this to replace CO2 cartridges when I get a flat (out on a ride) with my MTB or road bike. It works well to inflate a 29 x 2.6 tire up to 20 psi, which is fine. But on my road bike (700 x 25), I’ve only gotten it up to 50 psi. That’s barely enough to get me home. Also… if you use TPU inner tubes instead of traditional rubber tubes, this little pump can melt the plastic valve, because it gets pretty hot when pumping up the tire. The solution is that you need to buy a separate attachment hose they sell for around $9.00 on Amazon. It will get the hose hot, but not the plastic valve on your inner tube. UPDATE: The small attachment hose is definitely worth getting (need to buy separately). It creates a much better seal when the tube is screwed into the inner tube valve. I am now able to get my road bike tire up to 90 psi, which is plenty. Also, the unit doesn’t seem to get as hot when using the attachment hose.

Works great

Very portable device, fits nicely in back of cycling bib. Battery is adequately long to do multiple tires in an emergency. Charges very fast via usb, n the adapter to shradder to presta valve is nice addition.

Great product at a great price. Very convenient.

This one works. It has no gauge and no hose. It comes ready for presta valves. It says you can use it for the other valve as well, but I don't need that so I can't comment on it. I had returned one of these gadgets that had a gauge and a hose. When I'm on the road and I change a flat I want the simplest possible solution. This is it!

The pump would no longer power on or take a charge after 10 months. I used it a few times to fix flat tires but eventually it stopped taking a charge.

This works just as advertised. I have used it twice on group rides and it inflated the gravel tires with no issues. It does get a little hot so take breaks when using. Battery needs to be charged after a complete use but it is so much easier than a mini pump. Small enough to fit in saddle bag or Jersey pocket. Great value.

Was a great little pump for a while, but stopped charging after using it only 5 times over the course of a few months. Waste of money at this rate

Infla bien. Muy comoda

Super Produit et efficace, possibilité de gonfler 4 roues avec la charge

Se ha convertido en un imprescindible para ir en bicicleta. Muy potente, y un tamaño pequeño que permite transportarlo sin problemas. Tiene mucha fuerza para lo poco que pesa

Great compact pump for price will pump 4x tyres from flat easily (27.5x2.6). Saved much work on the trail. Fast to work and compact..

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