Tiny Pump Rechargeable Electric Bicycle Air Pump, Max 120 PSI, Mini Bike Tire Pump Auto Stop, with Presta and Schrader Valve

Surprisingly powerful and compact. I ride all year round and in bad winter weather I commute to work on a fat tire bike. Last year I got a flat in freezing cold temerature and struggled with a flat tire. The cold weather made the seal on my CO2 inflator incapable of holding pressure so my quick fix option was no longer an option...This meant pumping up a fat tire bike with a hand portable pump in the freezing cold....it took forever and it was a workout! I bought this pump later that same night so i would never relive that situation. There are other less expensive versions of these pumps avaibale on Amazon, but I did not want to mess around after that experience and bought the best rated version available that was the most compact and I was not dissapointed. this little pump is solidly built and very powerful. I found that I could pump a 26x4 tire to 40PSI one and a half times on a single charge. it takes a few minutes, but it's better than using a hand pump. I find it to be more reliable than a CO2 inflator and in the long run more cost effective since the largest CO2 cartidges are not cheap and not rechargable unlike the batteries in this pump! I found a small watertight plastic case for it and I can fit the pump, the hose and adapters it comes with and a couple other small accesories together and it all fits in my pocket (see attached pics). It charges up real fast on a type C USB. If I manage to somehow get two flats or a slow leak requiring multiple uses, I can recharge the pump using my ebike battery or the battery bank I carry for my phone if im not using an ebike...it usually takes 15 minutes to charge after using it on a single tire and 30 to 40 minutes if I fill two tires from completely flat to 40PSI. I also ride a gravel bike with 700x40C tires and this pump will fill a tire from flat to 60 PSI about 3 times before a recharge and the 700x25C tires on my road bike fill to 100 PSI 2 to 3 times before needing a recharge....you just need to give it time inbetween uses becasue like all compressors, it gets very hot. Be very careful of this if using with TPU plastic inner tubes. it can probably melt the valve stem if not careful. take pauses to let it cool and use the extender hose to keep the hottest part of the pump as far from the valve stem as possible.I have since bought another similar pump that was about 40% less expensive than this one just to have a spare and I was also curious to compare the difference in quality. I will say that this Anoutway version performs a little better (i.e. reaches desired pressure faster and has good battery effeiciency), dissipates heat better, and is made of solid materials not cheap plastic so it is less prone to damage. Since the fat tire bike is the biggest pain to deal with this is my designated pump for that bike because the reliability gives me peace of mind. The cheaper one I take with me when i ride my smaller bikes.Last nickels and dimes if I might predict some of the questions you might have ...YES the pump is able to be configured to work on Shrader AND Presta valves whether you use it with the extension hose or not. YES the pump is very loud when opperating so you might want to only use it outdoors. There are multiple versions avaiable on Amazon with significant price differences, this one ( the PRO mid priced version) has a programable pressure setting with auto stop that shuts off the pump when the tire is at the desired pressure and also has a nice LCD screen to display pressure and battery life remaining. The MAX version (most expensive) is the same as the Pro but with a bigger battery so if you have a little more room in your pockets for a slightly larger pump you will have longer lasting charge.Then the basic model (least expensive) does not have a screen to indicate pressure or battery life it just has a red, green, amber light to let you know how much charge you have left. it is more affordable but if you have to carry a pressure guage with you everytime you use it, the inconvenience might outwieght the cost on this one.

I have recommended this pump to all of my friends. I have 2 of them and they are always reliable and dependable. Battery lasts for a very long time. Pump is extremely small, and fits in any pocket or pack. Quick fill time and very easy to use.

Short version- stop scrolling and buy the damn thing it’s worth its weight in gold.Long version- If you’ve ever had a flat miles from home it sucks.. pushing a bike several miles really sucks, pushing a 110lb E-bike home just blows. This little bastard not only airs up your repaired or new inner tube, it does it fast. I ride an E-bike with 20x4 tubes/tires and it pumped my completely unaired tube up to 17lbs in less than 30secs! It’s half the size of my smart phone and pumps way faster than a full size manual foot pump. I have a $700 ARB onboard A/C on my Durango and this beautiful little try hard pumps about half as fast as it does at 1/8 the size and 1/29th the price! It is so small you can wrap a new tube around it and fit it under a normal bike seat. It also has a coupon making it super cheap! I’m also amazed at the battery life and overall quality. This is the one and only time I’d credit an engineer for designing a product that needs zero improvement! I give it a 10/10.

Bought for a travel MTB trip where we couldn’t bring Co2. I had this and a friend has a different brand but similar. We were able to fill six MTBs from mostly flat with the two little pumps - so 12 tires. Pretty impressive. I then carried this little pump 5 days on trail and it fit comfortably in my rear jersey pocket, even with other gear shoved in. Never fully maxed out the capacity, but it was fine for morning tire top offs then a two tire fills when a buddy picked up a wire in his tire and the sealant took time to kick in.The only knock (one star) is that the pressure gauge, at least at the low end, is off. If I set to 18psi and and test with my digital gauge I’ll read 15-16. I need to set this anywhere between 22-24 to get 18psi. It’s not consistent either. I’ll need to test on my road tires to see what the readings look like there.

So far, so good. I am impressed how easy this is to use. Turn it on, set the pressure and press it on the valve. No fiddling with the locking mechanism of a standard pump, it just auto turns on, fills the tire and shuts off at the designated pressure. Super easy. It does get very hot, so the valve stem will be nearly too hot to touch if you are putting lots of pressure in, but apart form that, I love it. The battery seems to last for several top-offs and a few (4-6) fill from zero's for standard road bikes and I am sure a bit less for mountain bikes. Although, I mostly top off 20 or so PSI, so it lasts a long time. I got a 2nd one to keep in my backpack for MTB rides and it replaced my C02 + pump combo.

Small and size fits in my jersey. Worked great to fill two tires that were low on a ride. This is marketed as not waterproof and comes with a bag to carry in. That is probably not necessary unless you’re riding in the rain. There is a warning against using This with TPU tubes as it can melt the stem when it gets hot. I have not had any problems. to prevent melting, the stem of this type there is a hose extension. this is a great alternative or addition to carrying CO2 cartridges.

So far so good. I thought it wouldn’t last but it’s worked well. I can now adjust the tires pressure based on the condition of the road/trail. Good enough for my 35c tires. My 25c tires get inflated very fast.Pressure gauge is accurate when compared to the one I used with my aid compressor.It fits in my jersey pocket so I carry it all the time.

This pump is awesome, and small enough to carry with me during rides.