GPUTEK Mini Bike Pump Electric for Presta and Schrader Valves Bicycle Tire

This thing is awesome. Longtime cyclist here who, over the years, has experimented with various portable pumps searching for the holy grail of pumps.. this might be it. The assortment of really good fittings alone would have been worth the purchase price. (I recently bought a press-on presta fitting for one of my twist-on pumps - and that was $20 all on its own). PROs: [1] The battery charged up fast (much faster than I expected), and lasts long enough to pump up multiple tires. I don't feel the need to carry backup CO2 canisters, inflator with this. [2] Comes with an excellent array of fittings. Comes with a flexible tube (use is optional) with a screw-on Schrader fitting that rotates smoothly, a press-on Schraeder fitting, and a press-on Presta fitting (I just paid $20 for one of the latter a week ago). The fittings can be screwed (quickly) into either the tube or directly into the pump body. The pump body is small enough that I didn't need to use the hose on any of the bikes I tested it on. It's super quick to switch between Schraeder & Presta. The fittings are very light and screw on smoothly. It's also useful as a pressure gauge. [3] This thing is light and small. The pump with the Presta fitting attached weighs 124g. 2 of my CO2 canisters (without the inflator) also weigh 124g. The volume is ~ the same as a tiny CO2 inflator + 2 canisters. My standalone pressure gauge for the fat bike is 126g all on its own. My roadie emergency pump is 90g, but I would never reach for that unless I was out of CO2 canisters. My non-roadie portable pump is 185g (199g with the separately-bought press-on Presta fitting). [4] 'Set-it-&-forget-it' convenience. You set the desired pressure (this was easy..holding down the +/- buttons speeds the scrolling, so it wasn't a nuisance to switch between the road bike and fat bike), push it onto the valve, press a button, and wait (~maybe a minute). It auto-stops when it reaches the set point. [5] Much, much quicker than even the best portable pumps. (And I've used many purchase specifically for efficient use for particular bikes). CONS: [1] It is (very) noisy. I would be hesitant to use it at home in an apartment depending on time of day, but wouldn't consider it a problem outdoors. [2] Slower than a full-size floor pump (but I didn't intend to use it for that purpose anyway). I just put an order in for a second one as a gift. I think I've finally found my 'Holy Grail' of portable tire pumps.

After getting a flat about 10 miles into a 20-mile scooter ride this summer, I realized I didn’t have a good solution for keeping my e-scooter tires properly inflated. I know it was my fault for ignoring the tire pressure for too long, but without having a compressor with me and all times—and with the motor hubs leaving so little room to connect to the valve stem—I knew it could easily happen again. Then I found this! I was honestly skeptical that something this small could actually inflate a scooter tire to 50 PSI, but I’m incredibly impressed. You simply set your desired pressure, connect it, and it fills the tire from 0 to 50 PSI in roughly 5–10 seconds and barley drops the battery life. Even better, it’s small enough to fit right in my scooter’s front bag. For something this compact, the performance is seriously impressive. It gives me a lot more peace of mind knowing I can handle a flat or low tire while I’m out riding. Highly recommended!

This little pump exceeded my expectations. I recently used it during a 100-mile ride after developing a slow leak around mile 77. It was able to top off my 700x50 gravel tire multiple times and got me back on the road when I otherwise would have been stranded. The pump is compact, lightweight, easy to carry, and simple to use. I was able to get approximately 3-4 full inflations on a 50mm gravel tire before needing a recharge. The digital pressure display is accurate and makes it easy to hit your target PSI. For road, gravel, or everyday riding, this is one of those tools you hope you never need but will be glad to have when you do. Highly recommended.

I really like this pump. This is my first mini pump or even rechargeable pump. I’ve always just had floor pumps. It’s so small that it fits in my hip pack no problem. I like the hose that’s included with it. That makes it easy because you don’t have to sit there and hold it on. I’ve used this thing about 10 times now. When I compare the psi to my digital gauge it’s 2psi off. So if I want 18psi I set the pump to 20. The built in light is a nice feature although I haven’t used it. It’s loud as all get out. So I’m giving 4 stars. But, they are all loud I think so I’m not even sure if that’s fair. I have zero gripes about this pump. It charges fast. Super portable. Feels durable. Moderately accurate. I’ve used this to pump up both my full suspension and my 27.5x4.5 fat tire bike. Excellent performance. No regrets buying this. The price point makes it a really good item to buy a biking enthusiast as a small gift. They’d be excited to receive it. No regrets buying this pump. I’d buy it again if I lost it or it broke.

Happy with purchase, works easier than the push models, and works both presta and traditional valves. It does get hot after using but good battery life and quick inflation.

I use this pump to fill up my tires on my road bike and it works really well. It filled the tires up to the psi setting I had it set to. It did it pretty quickly too. The accessories that it comes with are pretty solid in quality. I have presta valves on my bike and the attachment worked really well.. The item is really compact and fits really nicely in my saddle bag that I have under my seat. I had to charge it after I used it for the first time and it charges very quickly. This little compressor is a must have for anybody who rise on roads or mountains. Very easy to use and definitely worth the price. Five star recommended.

I switched to tubeless tires on my road bike about a year ago, and now I rarely get flats. But when I do get one, the fix is somewhat more problematic than before, when I could just pop in a new tube. With a tubeless tire, if the sealant doesn't plug the puncture immediately and you get a flat, you can usually pump it up to a rideable pressure, continue your ride and the sealant will eventually work its magic. But sometimes it takes two or three pump-ups before the puncture seals. Using a small frame pump can be a real workout. CO2 inflators don't play well with sealants and can make them ineffective. After watching numerous Youtube videos on electric mini-inflators, it became apparent that lots of serious road cyclists are carrying them in their saddle bags. I ordered this one from Amazon because it was one of the best sellers, had decently high reviews and was among the least expensive. It arrived the next day with about 2/3 charge. Tubeless road tires run at lower pressures than tubed tires (50-70 PSI vs. 90-120 PSI), so this little pump had no problem inflating my 30 mm tire from 0 to 60 PSI in about a minute. I wanted to know how many inflations I could get out of a charge, so I charged the pump to 100% using the included USB-C cable. I then completely deflated a tire and pumped it up to 50 PSI (If I get a flat, I just want to pump the tire up to a rideable pressure to give the sealant the best chance to work). This little pump inflated the tire five times before running out of juice. (If I can't get home after five pump-ups, I'm calling my wife for a ride). It did shut down during the fourth inflation and the screen readout said HOT, so I let it cool down and it was good to go. I don't think this would be a problem out on the road because the pump would have time to cool down between inflations. Most reviewers have noted that the pump gets hot, especially after prolonged use. The pump itself doesn't get too hot to touch, but the tire valve does, so be careful when re-tightening the valve core -- wait a minute or just spit on your finger. I know a lot of roadies who carry a spare tube even though they go tubeless, but inserting a tube in a tubeless tire can be a nightmare. (I've done it, but I don't ever want to do it again). So I'll just keep my sealant replenished and rely on this little pump to keep me on the road if I do get a flat. There will come a time, I'm sure, when I'll wonder how I ever got along without it.

Super small and portable but LOUD! Good for emergency use only I think. Topping up two 70x28 tires to 90psi kills the battery and it gets HOT. May need to calibrate as 90psi in tire feels very hard. Still, if it saves me once, it will be worth it.

Perfect to take with on any bike i ride.

For £36, this is an excellent, compact, and long-lasting battery-operated pump. It has replaced my micro hand pump, CO2 cylinders and nozzle, saving both weight and space in my repair kit. The built-in display also makes it easy to check tyre pressures on the go. Set up is simple. You can switch between presta (which I use) and schrader (car type) valves just by screwing the chunky, rubberised connector into the pump body. The included 11 cm extension hose is configured for schrader, but you can screw the presta adapter into its end, instantly converting it while giving you extra flexibility for awkwardly positioned valves. The controls are also simple: Long-pressing the power button turns the pump and colour display on. A double-press of the minus key toggles between PSI and BAR. Target pressure is set with the plus and minus keys: single-press for fine adjustments (0.1 BAR or 1 PSI), or long-press for larger changes. A double-press of the plus key activates the built-in LED, which is bright enough for night use. In use, inflating a tyre from 18 to 26 PSI took about 30 seconds. I run tubeless and was initially worried about sealant spraying into the pump, but positioning the valve at 9 o'clock and pushing the nozzle on quickly creates a good seal, immediately displaying current pressure. Pressing the power button once starts inflation until the target pressure is reached. Battery life has been good. After topping up three 29" tyres, the indicator had only dropped one bar, so I expect it could inflate at least two tyres from flat. Recharging is quick via USB-C, and I simply top it up every few weeks. Overall, this pump is small, reliable, and excellent value for money. It has become a permanent part of my repair kit and I'd happily recommend it.

Jag ersatte min tidigare batteridrivna pump, som var betydligt större och tyngre, med denna som var betydligt mindre och smidigare, och fungerar minst lika bra.

La pompe est de très bonne qualité et très précise elle est capable de gonfler un peut plus de deux pneus de vélo de route complètement plats,,,,,et ne prend vraiment pas de place dans la sacoche de votre vélo,, je note 10 sur 10 pour le moment car employer qu’une seule fois

Prodotto utilissimo, fa egregiamente il suo lavoro, ottima autonomia e versatilità, molto piccolo e di facilissimo utilizzo, il display e chiarissimo e di intuitivo utilizzo. Un pelino rumoroso, ma lo utilizzo per la mtb e non lo trovo un grande problema.