CYCPLUS 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)
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Availability:
In Stock.
Arrives
Friday, Mar 20
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Features
- Pocket Size & Portable: Weight: 4.23 oz (120g); Size: 2.75 x 1.10 x 1.92 inches - mini and light-weighted, perfect for single-handed use. Portable to carry and store - can be attached to the backpack or put in your pocket.
- Powerful InflationIts compact size belies its lightning-fast performance. With a maximum air pressure of 120 PSI, It takes only 52 seconds to refill a 700 x 25C tire (0-80 PSI) and only 120 seconds to inflate a road bike tire (0-120 PSI). It focuses mainly on bicycle inflation, and is more professional for E-Bike, Mountain Bike, City Bike and Road Bike.
- Auto Shut-offThe LED large screen with pressure gauge function allows easy reading of preset pressure values and real-time pressure readings, with a measurement accuracy of 1 PSI. Once the desired pressure is set, this bicycle tire inflator will automatically complete the remaining tasks, stopping automatically when the target pressure is reached.
- Fast ChargingOnly 30 minutes to be fully charged. With a full charge, it can inflate at least TWO 700*25C tires from 0 to 110 PSI.
- 2 Kinds of ValvesCompatible with both Schrader valve and Presta valve - 2 in 1 for easy to carry. Besides, the extra air hose in the package can help you to avoid any awkward angles or blind spots.
- Perfect GiftFrom road trips to daily rides this little helper fits every lifestyle.
- Package ListTire inflator 1, flexible hose 1, Presta Valve Adapter 1, ball needle 1, silicone case 1, waterproof storage bag 1, USB charging cable 1, user manual 1
Item Package Dimensions L x W x H: 5.04 x 3.5 x 1.46 inches
Package Weight: 0.23 Kilograms
Item Dimensions LxWxH: 1.69 x 1.1 x 2.76 inches
Item Weight: 0.23 Kilograms
Brand Name: CYCPLUS
Warranty Description: 2 Year Manufacturer
Model Name: AS2PRO
Color: Black
Material: Aluminum
Suggested Users: unisex-adult
Manufacturer: CYCPLUS
Part Number: AS2PRO
Style: AS2 PRO
Included Components: tire inflator
Size: Small
Date First Available: September 14, 2024
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Mar 20
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
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.
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Reviewed in the United States on June 23, 2025 by i. c.
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!
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Reviewed in the United States on December 3, 2025 by John Kogle
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.
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Reviewed in the United States on April 30, 2025 by Imejasan_Photog
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.
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Reviewed in the United States on November 28, 2025 by semaphore
Works surprisingly well! I have not pumped tires from full flat yet to see how much actual battery life it has, but very impressed with quality! Rather expensive, but it replaced a much larger pump in my trunk bag and gives me much more carry space. Nice to have in my bag when I’m 20 miles from home!
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Reviewed in the United States on January 4, 2026 by C. N. Shannon
Every cyclist eventually ends up in the same situation: low tire pressure right before a ride, a slow leak mid-week, or that annoying “it feels a little soft but maybe it’s fine.” That’s exactly where the CYCPLUS AS2 PRO becomes a game changer. This pump is shockingly small, yet it delivers the kind of convenience you don’t fully appreciate until you’ve used it a few times. It’s basically a pressure assistant you can keep in your jersey pocket, saddle bag, or travel kit — and it makes inflation and top-offs effortless. ⸻ ✅ Pros 1) Truly tiny, truly portable The biggest selling point is how compact this thing is. It’s not “small for an electric pump” — it’s actually pocketable. Perfect for: • saddle bags • tool kits • jersey pockets (depending on size) • travel + bike case setups For cyclists who like being prepared, this is one of those why didn’t I buy it sooner tools. 2) Built-in pressure gauge + Auto Stop = accurate and stress-free This is where the AS2 PRO feels premium. You set your PSI, press start, and it stops automatically — no guessing, no over-inflating. It’s ideal for road riders who are picky about pressure consistency, and for MTB riders who want repeatable settings. 3) Fast enough for real-world use Is it as fast as a full-size floor pump? Of course not. But for what it is, it’s impressively quick: • topping off road tires is fast and easy • MTB tires take longer, but still totally manageable • it’s perfect for “get me ready to ride” situations 4) Works with Presta and Schrader Major win. No complicated setup, and it’s compatible with: • road bikes • MTBs • e-bikes • commuter bikes It’s also great if you have multiple bikes at home. 5) Great for travel and race days This is a race bag essential. Especially if you travel often, or do events where you want control over tire pressure without relying on someone else’s pump. You can land, assemble the bike, set the exact PSI, and roll out. ⸻ ⚠️ Cons 1) Not a replacement for a floor pump This is a convenience pump, not a workshop tool. It’s perfect for topping off and emergency use, but if you’re inflating totally flat tires every day, a floor pump is still king. 2) Battery planning matters You’ll want to keep it charged, especially if: • you run high PSI • you inflate multiple tires • you use it for larger-volume tires (MTB/e-bike) It’s not a flaw — just normal for compact electric devices. 3) It can get warm during longer inflations If you inflate from very low pressure to high pressure, you’ll notice some heat build-up. Not alarming, but worth mentioning. ⸻ Wrap Up: Is the CYCPLUS AS2 PRO Worth It? If you cycle regularly — especially road, MTB, or e-bike — the CYCPLUS AS2 PRO is one of those tools that instantly improves your routine. It’s accurate, portable, easy to use, and the auto-stop feature makes it feel smarter than a typical mini pump. This isn’t just a gadget. It’s a practical upgrade that saves time, improves consistency, and reduces pre-ride friction. Overall: highly recommended for cyclists who value convenience, precision, and portability.
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Reviewed in the United States on January 13, 2026 by Simon
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.
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Reviewed in the United States on February 7, 2026 by Amazon Customer