AS2 PRO Tiny Bicycle Pump with Gauge, Max 120 PSI Electric Mini Pump, Auto Stop, with Presta and Schrader Valve for E-Bike, MTB, and Road Bike (2025 Updated Version)

This little pump is amazing and doesn't take up much space in my bike bag. It pumps up quickly and precisely - which i love! Pick the amount of pressure and it pumps until it hits the target. I run tubeless on my road bike and it does great! I use it to pump up other riders tube/tires which requires more pressure - but no problem! This is a great little pump and worth every dollar!

I am an old(er) cyclist. During my 50+ years of cycling I have seen many new cycling products, claiming to be the best thing since sliced bread, come and go. I can safely say that these mini-inflator e-pumps are truly a game changer. No more need to carry CO2 cartridges. No more adding to the local landfill with spent cartridges. No more having to deal with CO2 inflators that are often finicky causing the loss of an entire cartridge. No more frozen fingers as CO2 cartridge release their gas. Let me cut to the chase. On a recent 60 miles ride I had three punctures. It is goathead season around here and the particular road that I was on gets its fair share of those little devils. I was able to fix and fully inflate all three punctures up to 75 psi. I still had one more bar showing on the digital display. I guess that if I had one more flat I would have to use my back-up pocket mini-pump. But that would have been OK. This pump is well made, it works fast, the noise level is minimal, especially out on the open road, the digital gauge is a plus and it fits just right in my saddle bag where two CO2 cartridgesand the inflator valve formerly resided. If you want a well-made pump that works well, backed by a company with good experience in the field, and all at a reasonable price, look no further, this is YOUR pump. You don’t need to go to another manufacturer, pay more for their fancy-named product and wait in line because the owner cannot figure how to sell his pumps in the USA. Get this pump, you will not regret it.

The CYCPLUS tiny electric pump is a surprisingly capable tool in a very compact form. I’ve used it for my road bike (high-pressure presta tires), and it handled without issue. It reaches the advertised PSI (up to 150) and shuts off automatically at the set pressure, which is a big plus. Battery life is solid, I’ve gotten multiple inflations on a single charge. Build quality is excellent, and it fits easily in a jersey pocket or saddle bag. It’s a great emergency pump for cyclists who want an alternative to CO2 cartridges or manual pumps. The digital gauge is reasonably accurate, and it charges via USB-C, which is convenient. Highly recommended for anyone looking for a reliable, portable inflation solution on the go.

I’ve been using this pump regularly for months. I use it every day to top up my tubeless 700x19 presta tires before riding as seen in the video. It’s small and carries nicely in my jersey pocket, is relatively light, and well made. There’s more than enough battery to inflate the tires a couple of times. It charges quickly so I top up the tires, put it back on the charger, finish getting ready to ride (5-10 minutes), and then put the fully charged pump in my jersey pocket. I also use it to top up my motorcycle tires. It can add ~3 psi in about 2 minutes into a 195/55-17. I don’t rely on it to reinflate that tire; I carry a 12V pump that runs off the motorcycle battery for that. While it can get hot when running for a minute or so, the included form fitting cover buffers the heat and stays on the unit all the time.

The CYCPLUS Tiny Bicycle Pump with Gauge works admirably for restoring road pressure of around 60psi to my 2.5 inch e-bike tires following an off-road outing under reduced pressure of around 20-25 psi. I have learned that restoring pressure with my mini-pump is both more time consuming and labor intensive that I want to deal with following an arduous off-road ride. Enter the CYPLUS bicycle pump. Set the desired pressure, attach the pump to the valve and stand back. It will produce an audible "buzz" as it runs but will automatically turn off when the desired pressure is reached. I can probably get three inflations from it with these large-capacity tires under the scenario I described. It is tiny and convenient but in a perfect world, I'd like it to be slightly larger for greater battery capacity, admittedly, a selfish ask on my part. For most uses this little guy is perfect for a weight-conscious roadie, gravel, or mountain bike rider. After only a few uses the initial sticker shock of its cost will disappear and you'll wonder why you didn't get one sooner.

Incredibly small for what it does and the pumps/compressors it replaces. Plenty of power, does the job fast and pressure seems accurate. Yeah, 2-3 tires and then will need a recharge but that's expected since it uses a battery which is obviously going to be small. Sure, it's a little loud but corded pumps and compressors are much louder. Sure, it can get warm or bordering on hot but corded pumps and compressors do the same. This one is just far handier. Because heat and cold are no friends to batteries or rubber seals, I keep this stored in the house where the climate is controlled as opposed to the garage.

I bought this on an Amazon Prime Day sale based on magazine reviews. It replaced a carry-along CO2 inflater. It works well, once you figure out how to use it. It's noisy (as some reviewers have pointed out), but so what? Be aware that if you do intend to use this as carry-on for emergencies, make sure you keep it charged.

Perfecto, pequeño y funciona muy bien.

Very well made pump. I am happy with the size and weight. The display is very usefull and I am using it to check my pressure. It is easy to carry in the back pocket of the jersey or in the downtube storage of the bike. I've made a stress test and pumped my 29x2.35" tire 4 times to 22psi and on the fifth the pump died. Four full inflations of tire are plenty. I reccommend it!

Fait ce dont pourquoi il est prévu, il est petit et suffisamment puissant pour gonfler mes deux pneus de vélo, la pochette en plastique livrée avec pour la protection contre l'humidité est un gros plus et très appréciable. Cependant il à son poids, qui n'est pas négligeable, il faut en tenir compte. Il rentre parfaitement dans la poche arrière et se fait oublier sans problème. La pression est bonne, il s'arrête une fois la pression voulue atteinte, il y a la possibilité de la laisser en PSI ou de la mettre en Bar.

Pompa veramente fantastica. Ci gonfio tranquillamente due gomme da 28 tubless a 6 bar e rimane ancora una tacca. Se si confronta il peso equivale a 2 bombolette di cO2 . La consiglio.

+ Bra batteri. Tillräckligt snabb. Bra display och lätt att ställa in önskat tryck. - Aningen stor. Inte vattentät. Aningen dyr.