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)

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.

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.

Seems to hold a charge, the problem was getting it to fit on the Presta valve and holding it on there until it really starts to kick in. It starts going but doesn't do much until it gets really noisy (i.e, a higher whine). Then it seemed to work OK, although the tire never seems to get full, as in 100 PSI full for a racing bike. Only used it twice in the garage. If it saves me when I get a flat out on the road, maybe I'll give it 5 stars. Until then, not bad, not perfect.

WOW! I'm surprised, this little pump is really good. It pumped up a 29x2.1 tubeless tire from zero to 22 psi in 30 seconds. It's tiny and only weighs 94 grams. And for $34! I'll never ride without one.

Ok, this little pump is tiny but packs a punch! 😄💨 It’s super powerful (and yes, pretty loud 🔊), but it works great and gets the job done fast. Perfect for keeping in your bag or bike kit for quick fixes on the go. Totally recommend! 🚲✨

Excelente - Compressor

I used this thing maybe 4 times before the battery just gave me an error when I tried to charge it. Worked well until it didn’t. Waste of money.

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.