Fumpa Pumps nanoFumpa Bike Pump

The Fumpa Pumps nanoFumpa Bike Pump is an Australian-made portable electric pump that Fumpa claims is capable of inflating two bike tyres on a single charge. And this very light and compact package lives up to that claim – though it is both hot and loud in use.

Matchbox-sized and weighing just 102g, the nanoFumpa is lighter than a CO2 inflator and two canisters while providing similar inflation speed and capacity.

For the sake of portability (the NanoFumpa is barely noticeable in a jersey back pocket), Fumpa sacrifices a pressure gauge featured on heavier electric pumps.

The single button on top of the aluminium body doubles as an on/off switch and battery level indicator.

Using the pump

The nanoFumpa is straightforward to use.

First, configure the nozzle for the type of valve on your tyres (Presta, Schrader or Dunlop). It comes set up for Schrader valves and the adaptor for this setting is small, so keep it safe in the plastic bag.

To pump up a tyre, you secure the nozzle to the valve and hold down the on/off button on top.

After a couple of seconds, the nanoFumpa releases air for 50 seconds. Unlike some electric pumps, it works on flat and semi-inflated tyres alike.

One reason for the 50-second cut-off is to prevent the pump from overheating. By the end of this period, the pump is hot, but it never burnt my hand and I didn’t feel the need to wear gloves. During a cold, winter puncture stop, this heat may even be welcome.

After a cooling-off spell (I waited for a minute or so), you can inflate for another 50 seconds. If you’re inflating a flat tyre, you’ll probably need two sequences.

The 50-second cut-off also acts as a kind of preset function because two blasts are supposed to get a 700x25mm tyre to about 90psi. In the absence of a gauge, this gives you an idea of what pressure your tyres have reached.

For what it’s worth, Fumpa says the maximum pressure possible is 120psi.

Inflation speed and capacity

Lacking any skinny road tyres, I tested the NanoFumpa’s inflation performance on wider road bike tyres. It also got these back up to a rideable pressure in two 50-seconds spells a piece, as verified by a digital pressure gauge.

With a set of 700x32mm tyres, the first reached 63psi and the second attained 51psi before the nanoFumpa battery ran out. Given my target pressure for these tyres is about 60psi, that’s a solid effort and seems consistent with Fumpa’s claimed performance.

But of course, the NanoFumpa’s limited run time underlines the need to carry an additional means of inflation in the event of you or your riding mates requiring more capacity.

For me, this would be a trusty but much slower mini pump. Fumpa claims the larger, heavier and pricier MiniFumpa (the two are shown below) can inflate two to three tyres as opposed to the nanoFumpa’s one to two.

When inflating tubeless tyres, Fumpa suggests flipping the valve to the top of the wheel to minimise the chance of sealant entering the pump mechanism.

If your tubeless tyre punctures and loses air without going completely flat, the nanoFumpa is a decent option despite not having a gauge. It’ll add pressure quicker than a mini pump and won’t require you to open and potentially waste a gas canister.

Hot to handle

Thanks to their ride quality and low rolling resistance, TPU and latex inner tubes are increasingly popular. Unfortunately the nanoFumpa’s inflation heat rules out inflating them in its standard guise.

To avoid melting the valve, Fumpa advises using its £19 elbow nozzle kit (shown below), which absorbs the heat. 

There’s little you can do about the considerable noise the nanoFumpa generates in use. Although it’s comparable to the burr of a medium pressure washer, on the side of a road or trail, it’s unlikely to bother you or anyone else in the couple of minutes it takes to inflate a tyre.

Speaking of water, the nanoFumpa isn’t waterproof (nor are its competitors). So in the rain you’ll need to protect it in something like the plastic zipped bag that Fumpa supplies.

Value

At £75, the Fumpa Pumps nanoFumpa is in line with similarly sized electric bike pumps.

The Cycplus AS2 Tiny E-Pump costs £67.50, weighs 97g and can inflate two 25mm tyres to 80psi on a single charge, according to the brand. The price includes an extension hose, and Dave was very impressed with the £89.99 Cycplus AS2 Pro Mini when he tested it last year.

Meanwhile, the nanoFumpa undercuts the £100 Muc-Off AirMach Electric Mini Inflator. Fumpa’s pump has the advantage of a preset function and a less-easy-to-lose Schrader adapter.

Although at £119 the Silca Elettrico Micro Inflator is much more expensive, its inflation capacity is equivalent to four CO2 cartridges, according to the brand, which is approximately double the Fumpa’s at roughly the same weight.

For more options, check out our best bike pumps buyer’s guide and best mini pumps guide.

Conclusion

This is a light and compact electric pump that delivers on its performance claims. Though personally if I was shopping for an electric pump, I would probably spend more and slightly compromise portability to access features including a gauge and adjustable pressure presets, and to boost inflation speed and capacity. This augmented versatility makes electric pumps suitable for tyre maintenance as well as emergency inflation.

Verdict

Effective, portable and rechargeable emergency inflation

All the deals displayed on our review pages are pulled from a constantly updating database feed of the best affiliate deals available. The criteria for deciding on what are the best deals is who is offering the lowest, delivered price. In most cases we will be showing the very best deal available online, but sometimes you may be able to find an item cheaper. If you can please feel free to post a link in the comments box below. To find out more about affiliate links on road.cc click here.