Cordless battery-powered tyre inflators have been around for a few decades, and their whir has been a regular fixture within professional mountain bike and cyclocross race pits. However, it wasn’t until approximately a decade ago that Australian company Fumpa created the category of compact and cycling-specific tyre inflators that grabbed the attention of many cycling nerds, myself included.
These inflators started off as an alternative to a floor pump, or as I’ve described them previously, as digital tyre gauges that inflate. Fast forward to today and much attention is on the new pocket-sized inflators designed to take the place of mini pumps and CO2 cartridges, all while doubling as pressure gauges that inflate. With a few major electronics manufacturers disrupting the market, prices have decreased, features have been added, and interest has surged.
Last year I reviewed and compared 10 cordless tyre inflators, the fifth time I’d reviewed this product category. Just 12 months on and the category looks completely different. I’ve spent the past couple of months testing 19 new pumps, many of which are close iterations of each other. While none are terrible, there are a few I’d recommend avoiding. Similarly, of the many pumps tested, most will efficiently (and noisily) put air into a tyre and leave your riding friends impressed. The differences, as explained within, are often nuanced, but there are options that stand out.
If you’re seeing this, you’re visiting the free version of Escape Collective.
Escape Collective is a wholly member-funded cycling publication with no ads, affiliate links, or other alternative sources of income. This test took countless hours to compile, following a decade of reviewing products in this category. We stand behind our findings and you can be confident in the products recommended.
You’ll need to be a member of Escape Collective in order to see the winners and losers. You can access this article with a single-month membership (and then binge-read the whole Threaded series), but consider sticking around to see what Escape and its community have to offer.
Jump to
- Defining size and purpose
- Same same but different
- Best mini inflators
- Best small to medium inflators
- The losers
- The test data
- Frequently asked questions
- Wrap up
Defining size and purpose
Times have changed, and what was once a product the size of an electric drill is now available in a device nearly as small as a box of matches, an Apple Airpods case, or just a couple of 16g CO2 canisters. That’s rather impressive, given that some of these products can rival a good floor pump and replace the need for a separate pressure gauge.
The smallest size category, which I’m designating as Mini, is the newest category of inflators and the one that’s getting the most attention. I’ve defined this category as any inflator small enough to fit into the rigid confines of a large down tube storage area (Santa Cruz Stigmata used for test). In the case of pumps like the Trek Air Rush Mini and Viair Recon Mini, you’ll need to unscrew the valve head to do so, but given its simple and designed to do that, I've counted them. Anything bigger than this, or with an awkward shape (such as the Flextail Mini), does not qualify for this Mini size.
Two years ago, this smallest size category had fewer than five options, and all without pressure gauges. Things changed quickly and now all but two pumps of this size have gauges. The best in this category will inflate a tyre to pressure in approximately one minute (specifics shared later), do it 3-4 times on one charge, and all with an accurate gauge – meaning that these pumps could be the only pump you need for before and during the ride, and regardless of whether you ride road, gravel, mountain bike, or whatever.
Pumps that I’ve designated as Small are just marginally bigger than the Mini category. While still small enough to fit into a regular saddle bag, jersey pocket, or pack, they do occupy just that little more space. That extra size sometimes affords faster tyre inflation or longer run times, but as my testing proves, that’s not a given.
The Medium size is something that could be carried on the bike via a larger saddle bag, backpack, or similar. However, given the developments among smaller options, I’d argue this Medium size, more than ever, is best thought of as a floor pump alternative, travel pump, or pre-ride gauge that also inflates. For me, this size of inflator must be faster to use than a floor pump or else its purpose is highly questionable.
Lastly, there's the workshop size of inflator, one I’m classifying as Large. Think of brands such as Milwaukee, Makita, and Ryobi that fill this space – often powered by a drill-type battery and now a common sight amongst WorldTour mechanics. The likes of Fumpa and Cycplus now have larger versions with integrated batteries, too. These aim to fill tyres quickly and do it many times off a single battery charge. I consider these to be far too big to ever consider taking on a ride, and often even too big if you were to fly with a bike. While I have tested a few, for the sake of not overwhelming this article, I’ll keep my thoughts and testing of this category for another day (though you can see the previous comparison for how the Milwaukee M12 stacks up).
All the electric inflators covered here are different from a more traditional air compressor, which pressurises air in its tank, and then releases that pressure in bursts. For bicycles, such a burst of air helps seat tubeless tyres or blast a washed bike dry. By contrast, all of these inflators are direct-drive with no capacity to create a sudden burst of air. Some can still seat better-fitting tubeless tyre combinations (more on this in the FAQ section), but regardless of size, each inflator is best thought of as a replacement for a regular-style bicycle floor pump and/or a hand mini pump.
Same same but different
Looking at the photo below may have you pondering how similar some of these inflators are to each other. The short answer is "very".
Like many product categories in cycling, there are just a small handful of specialist manufacturers who produce these for a swath of brands. All the pumps in this test are manufactured in China, except Fumpa, which is made in Australia (using some Chinese-made parts).
Sometimes the pumps are only different by the brand name stamped on them, but more often, back-to-back testing of identical-looking pumps does reveal subtle hidden differences, such as how they draw power from the battery which can result in differences in run-time, speed of inflation, heat build-up, and noise. For example, Silca’s pumps are manufactured by Cycplus, but its Electtrico Ultimate performs subtly differently from the most comparable Cycplus model.
All the pumps tested feature a USB-C rechargeable battery (with a charging cable provided). All work with Presta valves, and many can be configured to fit Schrader, too. All, with the exception to the Flextail Tiny Bike Pump, offer a flexible and threaded extension hose (Fumpa’s sold separately) which aids in fitment into tight spots, where you need Schrader compatibility, or if the heat build-up is a concern for those using TPU tubes with plastic valves. Many of these pumps also provide ball needles and nozzles for inflatables.
Most pumps include a short threaded extension hose that is optional to use. The exception is Fumpa (right), where a variety of hoses are available separately.
Notably, all of these pumps lack waterproofing, rather relying on supplied plastic baggies for extra protection. Most of the pumps are covered by a single-year manufacturer's warranty, although the likes of Silca and Trek double that. And the vast majority of these are technically non-serviceable, with the exception bein the latest generation of Fumpa pumps and soon Silca (service kits coming next year).
Perhaps the biggest development in the category has been the introduction of digital gauges even on the tiniest of pumps. Of the 19 pumps tested here, only two lack a gauge. Meanwhile, all the pumps with a gauge now feature preset pressure control, which automatically stops the pump once it reaches your requested pressure. Just know that not all pumps have nailed this feature, and that factors into my recommendations below.
It’s important to note that I largely only tested single samples of each pump. There were three exceptions to this (Cycplus AS2 Ultra, MagicShine Airro, and Flextail Tiny Bike Pump Pro), and as expected, there was some variation in gauge accuracy and run-times (shared later). This almost resulted in me going down a rabbit hole and never coming out with this review. But don’t worry, I climbed out.
The takeaway is that many of these things are made to a price point, and there will be some variances. When looking at the data, don’t stress a half-psi difference in accuracy or a quarter more tyre fill on a single charge – chances are they could swing either way if I were to test multiple samples of the same pump.
Best mini inflators
With 10 Mini pumps in this latest test I’m going to cut to the chase and tell you what impressed me most and why. Common themes with these are that they all feature a gauge and an optional thread-in hose (supplied). It’s really important to note that picking the winners of this category proved difficult and there are another handful that I’d be happy to use.
I’d encourage you to look at my test data as you’ll see a number of competitive options. It may pay to shop around and find an option on sale. Just beware there are a few that left me underwhelmed, which I cover below.
Did we do a good job with this story?
