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SEVEN DAY CYCLIST
CYCLING, BUT NOT USUALLY RACING
LATEST UPDATE NOVEMBER 30th 2025
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Coospo AP-X1 Bike Air Pump
125g £72.63 (£45.36 at time of writing)
The Coopso AP-X1 Bike Air Pump is small electric inflator of the sort that are increasingly commonly found in the rear pockets of roadies. Actually, they have applications beyond speed, for example those who have joints that don’t respond well to lengthy pumping. As ever, I’d keep a mini-pump to hand or have on-bike recharging capability, but that is true of any of this genre. Whilst competitive in weight and with good charge and inflation times, it lacks some features of more expensive models.
Pros: light, good charge and inflation times, price, more inflations per charge than many.
Cons: quite noisy, gets hot, no sleeve or cover (available as an after-market purchase), no bag for components.
Specification
The box contains the unit, plus a USB charging cable, a hose with Schrader valve and a screw in Presta adaptor, along with a needle valve. Use the last of these with caution – the pump will not turn off automatically on low pressure inflations. An auto stop is a definite plus. Pre-set the pressure (shown on the digital display) press the button to start inflation, and away you go (progress is reported on the digital display) the pump will also cut-out if there is no inflation taking place, i.e. you have a leaky tyre.
The display is in psi only. There’s a psi to bar conversion chart in the manual, but if you operate in bars, then it may be worth memorising the psi equivalents.
At 72x53x30mm it is smaller than some units. With a pressure range of 3 to 150 psi, it should cover most requirements. It claims to have an accuracy of plus to minus 1 psi. That will matter more to some than others.
The switch is easy to use. Long hold to power on and off, plus and minus buttons to pre-set pressure, and a short press on the power button to activate the pump. Simple.
The pump is powered by a 500mAh(3.7Wh) battery. This is on the larger side, with some e.pumps having 300mAh batteries. Longer charge time should equal more inflations of similar tyres.
Charging time is reckoned to be under an hour, but that will depend upon the source. Operating temperatures are 0C to 45C for charging and -10C to 45C for discharge. Well, that covers most cycling scenarios, though intrepid adventurers may push the limits.
80 decibels are produced during operation – one metre distant. The manufacturer warns that precautions should be taken. I have not bothered, but you won’t be using any e.pump stealthily.
The gubbins are encased in plastic, although Coospo claim that heat dissipation is “efficient.” Indeed 80% more efficient, but from what is not clear. I found the instruction manual easy to follow and with all the information one might need for successful operation.
Care and durability 3/5
The Coospo AP X! does not come with its own carry bag. I’d be inclined to sort something out to keep the bits together and away from contamination from dirt or water. Needless to say, keeping away from water is vital. Apart from that, care is relatively simple.
I accidentally dropped the unit onto some flagstones, from about a metre in height. No damage was noticeable on the outside, and there were no rattles from inside. I’d not repeat the exercise, if possible!
Charge and inflation times 4.25/5
Charge time is stated as under an hour. It is also recommended to ensure it is fully charged before first use. I’ve managed a full charge in 35 minutes from the mains, considerably less than an hour! Via the laptop, 42 minutes was my speediest.
Inflation rates are stated as for 700x25 tyres as around 47 seconds to 80psi – one charge managing four of these; to 90 psi 65 seconds – 3.5 tyres to one charge; to 100 psi, 90 seconds by three; 110 psi, 100 seconds by three; and 120psi, 110 seconds by 2.5. Don’t blink at the half-tyres that are going to be inflated: there’s a little left to top things up, if necessary.
All the above have proven to be accurate within three or four seconds. Inflating the fourth tyre sometimes left pressure just a gnat’s crotchet below the set level. However, the stated times and pressures seem to be pretty accurate.
What of those who want to use an e.pump, but do not roll on skinnies? Well, Coospo do not give stated times and pressures, I guess because this kind of gadget is most likely to appeal to the road cyclist wanting to spend a s little time as possible marooned on the roadside.
So here goes. The 26x1.75 tyres on my commuter – yes, I do sometimes have appointments to keep – went from zero to 70psi in 122 seconds. I managed two full inflations from one charge.
More in its native habitat are 700x32c tyres, such as those on my drop-barred tourer. 120 seconds took it from 0 to 80psi. I managed two inflations with a little left over.
Pressures have been checked with a regular pressure gauge. They’ve been within 2 psi on 700x25c and 700x32c, and within 3psi on 26x1.75.
General performance 3.5/5
The unit gets hot on longer inflations, bit not awkwardly so. I’ve found a finger top and thumb bottom sufficient to hold the unit during operation. On longer inflations the motor smelt hot as well. It is a good job that heat dissipation is “efficient”, in my opinion. In fairness, most e.pumps get at least warm. However, many have sleeves or jackets to insulate your hands. It’s worth noting that you can buy one as an aftermarket purchase. Coospo say that it is no longer necessary, but you might like one anyway.
Effectively, it takes a few minutes to cool down fully. It did not feel unpleasantly hot in the jersey pocket during cooling.
Tube and adaptors hold firm. First time round I’d not got things snug enough – soon spotted that things were not inflating as expected. However, remember to take care if you have removable valve cores – I overtightened and ended up with core removal misery and a tyre back to zero inflation.
It’s probably worth noting that one of the Presta valves on my tourer has a slightly bent top screw shaft which sits the nut at an angle. The Coospo did not like this at all. Several attempts and little inflation. Reassuringly, the pump turned itself off. Given a nice straight screw shaft and correctly placed nut, and normal service was resumed.
Value 4/5
Little heavier than the Muc-Off Air Mach Mini Inflator, but with slightly better inflation times and, capable of more inflations per charge. Charge time longer, but the battery is more powerful. However, the Muc-Off model has a sleeve for protection against heat.
The CycPlus AS2 Pro Tiny is more expensive then the Coospo. There are similarities – weight, pressures, and heat, as well as automatic cut-off. However, the Pro tiny does have a sleeve to help protect fingers when things hot up on those higher pressures. Michael liked the CycPlus AS2 Pro Max which comes in around £100 and is twice as heavy but has a much bigger battery and a charge time of around ninety minutes.
Overall, the Coopso AP X1 looks like good value for money, although it sacrifices some more sophisticated touches that some cyclists may prefer.
Summary
The Coospo AP X! is at the cheaper end of the e.pump market, but has good charge times and inflates at a competitive pace and can cope with more inflations per charge than most. Granted, it feels more plastic than many, and feels hotter when working, in my opinion. However, the fundamentals are very good and the price distinctly tempting. If effectiveness is top of the list and the peripherals are not a concern, then this little e.pump is well worth looking at.
Verdict: 3.75/5 Handy and effective, without the sophisticated feel of some rivals.
Steve Dyster
PUBLISHED AUGUST 2025
