Fanttik X8 Ace Bike Pump 150PSI Fast Portable Tire Inflator, Cordless Rechargeable Electric Bicycle Air Pump, Auto Stop, with Presta and Schrader Valve for Fat, Mountain Bike, City Bike, Road Bike

Update: the original pump I received had problems. The seller contacted me and sent a replacement pump. The replacement works as expected. Some notes in the pump: 1. It uses about 25% of the battery to pump a road bike tire to 100 PSI. 2. A little bulky to take on rides, but otherwise a reasonable size. 3. This device uses the same approach as others for presto - a screw in valve adapter. It creates a good seal but is a bit of a pain compared to the locking air chucks used on floor pumps made for presta valves. 4. They have a different chuck available separately which is more like a normal floor pump. It works much better than the screw on brass valve adapter included with the pump. 5. There is a quick option to select 100 PSI - much easier than other pumps I have tried. This one seems to anticipate road bike use. It would be better if it were slightly smaller and slightly lighter. It would also be nice if it could be a back up battery bank. Overall the seller was exceptionally responsive and resolved the concerns below.

This Fanttik X8 Ace pump is one of my best cycling purchases. It’s compact, lightweight, and extremely powerful, inflating road and mountain bike tires effortlessly to accurate pressures (up to 150 PSI!). Cordless and rechargeable, it's incredibly convenient for on-the-go inflation or emergency repairs. The digital display is intuitive and precise, with an auto-stop function that prevents over-inflation. Compatible with both Presta and Schrader valves, it’s versatile for any bike. The build quality feels premium and durable—perfect for everyday commuters, trail riders, or anyone needing reliable tire maintenance.

I have an electric skateboard with all-terrain pneumatic tires (200x50mm tubes). The rechargeable pump for my car works well for at-home inflation, but its much too big to carry as part of skateboarding kit. This pump is just as functional (USB-C charging, emergency light, and settable pressure). Just like the full size pump, you set the pressure and inflation stops at the target pressure. In a way, it's better than the full-size pump, which uses a lever-style quick-release chuck, which loses a little bit of air when you detach it from the valve. Negligible loss for a high-volume like an automotive tire but more significant for a lower volume tire like a pneumatic skateboard tire or even a bike tire. The screw-on style chuck of the Fanttik pump has proven lossless so far, maintaining the target pressure when detaching from the valve. There are different modes such as ebike, city, etc, but the target pressures don't really make any sense and I've ignored them. It's much better to simply know your target pressure and manually set it. Used that way it's quite simple to use. I have only tried this with my skateboard tires and no problem with all four wheels...plenty of battery left over. However, I haven't really tried to test just how long it will go before running out of battery...or shutting down to prevent overheating the pump. The instructions, which are competently translated into English, are poorly organized with needed instructions scattered through the instruction sheet. Thankfully it's pretty short and quick to scan the whole thing. In addition, there are no clear instructions on charging the pump. The pump has a four segment battery indicator and it appears that each segment blinks as the pump charges. I believe that when all four segments are lit and not blinking the pump is fully charged, but that's not stated anywhere in the manual. I believe that's a pretty reasonable and intuitive guess, but it would have been nice if it were written in the manual.

The power button seems to have three functions, on/off, light on/off and pump start/stop. I still have not figured it out. It is best to start the pump and walk away and do something else for a few minutes and then come back to it. I tried to pump up a large beach ball from full charge but after about six minutes the battery ran out and beach ball was only 50% filled at best. It worked great for a lawn tractor front tire. I set the pressure for 28 psi and walked away for about three minutes and it filled it up perfectly. It is fairly noisy, again a reason to walk away for a bit.

I have the Fanttik x8 nano but that only goes up to 20psi and needed something to not only inflate my Onewheel tires faster, but bicycle ones as well. This is a nice upgrade. Definitely faster, a little louder and slightly larger as well. Super easy to use with big buttons on the side. You just set the desired psi, turn it on and it will shut off automatically once it gets there. The battery seems to only last one entire fill up of both tires on my bike. But they were completely flat. It does come with a few adapters and usb-c charging cable. Great value for the money. There’s even a light on the top.

It does not work as advertised. It is nice and small but it will take 5 charges before a road bike tire is even half way filled. On one full charge it only pumped up my tire 2 psi! I gave up and used my hand pump because I was so sick of the thing. Do not buy unless you are just using it for balls 🏀

works well for my road bike. Light and fits in my bag. The battery should be better. 2 full tires max.

I like the form factor for this pump. I use it to air up my roadie to 105 psi and my MTB to 22 (both Presta valves). It also works for Schrader. It does both super well and I like that it has presets that save those values. I just select the bike type and hit go and it does the rest. It has the capacity to air up several tires before needing to be recharged. It is small enough that I keep it in my bike bag at all times. It is super nice to be able to top off my pressure whenever it is needed. My first one lasted about a month, just past the return period for Amazon, but I contacted the seller and they sent me a new one super fast for no charge. Great customer service.

It is a little bulky, but sturdy and magnificent in use. It is not instant pump but it is not magic. It works perfect and delivers optimal pressure for road tires faster and easier than hand pumps on the road!

Hubby is an avid biker and loves this for longer runs. Came in handy.

This electric pump is easy to use, waterproof and comes with a built-in LED light. I appreciate its portable design and that it automatically stops when the target PSI is reached. However, I'm still undecided whether I should keep it or return it, as I'm slightly disappointed, the battery runs out way too fast! I fully charged the pump and ended up with 1 bar left after inflating my two tires. I guess the pump is design for emergency use only, considering that the battery doesn't last! On the other hand, it charges fast, so it's a great alternative to the CO2 cartridges as long as you have a power bank in your bag or make sure it's always charged!

Ok pump. Very noisy sounds like its going to explode. Had air bypassing after filling a 27.5x2.8 to 15 psi. Battery dies quickly .. good for a top up ..but to fill 2 MTB tires from zero might be a stretch Also never tried higher than 15 psi when testing the pump... Auto shut off is a nice touch!

J ai acheté cette pompe car je la trouvais belle et que les gens en disait des bonnes choses et a ma mauvaise surprise en l esseyen a 3 _ reprise jai conflé mes pneux de velo et a 34 psi la pompe s arrete a chacque fois a la suite d un bruit bizard! Je suis tres decus car jai besojn de 45 psi dans mes pneux et ils disant 150psi quel pouvais faire 'ont n ai loin de la! Acheté le ptit coffre a 20$ de les meme couleurs,ils vont merveilleusement bien ensemble!