Review: Cycplus AS2, AS2 Pro and AS2 Pro Max mini e-pumps

All three mini e-pumps are lined up next to their boxes on a table outside. A hedge is in the background
From left: Cycplus AS2 Pro Max, AS2 Pro and AS2 mini e-pumps
These compact but powerful e-pumps aim to take the effort out of pumping up your tyres. Content officer Rebecca Armstrong tested them to find out if they work

Pumping up your tyres isn’t many people’s idea of fun, especially if you’re doing it by the side of the road in cold and rain. If you experience mobility issues in your hands it can be particularly unpleasant. This family of mini e-pumps from cycling tech company Cycplus aims to fix that.

They’re all very similar. In the box for each you’ll find the mini-pump, a USB 3-to-USB 3 charging cable, an adapter to switch between Presta and Schrader valves (they’re set up for Presta out of the box), an extension cable, silicone case and waterproof bag.

The charging cable wasn’t much use to me, but luckily (and probably like most people these days) I have several USB-to-USB 3 cables. Using one of those I made sure each unit was fully charged out of the box. They were.

The Cycplus website describes the products as ‘tiny’ and this is pretty accurate, particularly with the AS2, which weighs less than 100g and is smaller than my mouse. All three will fit in a jersey pocket, although the Pro Max will pull. They’ll also fit in all but the smallest of bags.

The mini e-pump shown next to a mouse on a mousepad
The AS2 is even smaller than this mouse

They all work in very much the same way: push the nozzle onto the valve, long hold the on/off button to turn the unit on, then press it again to start the pump. There are a couple of important differences: the AS2 Pro and Pro Max both have small screens and two extra buttons.

This allows you to set the pressure you want to pump the tyre to. When you turn the unit on, the screen lights up. It will show the pressure it’s currently set to. You can adjust this up or down using the plus or minus buttons. Press them both together and you can toggle between PSI and BAR.

Once you’ve set your preferred pressure, it will flash a couple of times. You’re now ready to start pumping. Do this by simply pressing the on/off button again. The unit will pump the tyre to your selected pressure and then automatically stop once it gets there. The screen also shows battery level.

I tested both units at 60PSI on my touring bike and 80PSI on my road bike. It took fewer than three minutes in each case. I checked the pressures using my usual pressure gauge and they were spot on.

The Cyclplus AS2 Pro mini e-pump out of its box shown alongside all the kit that comes with it
The AS2 Pro with all its accessories; the AS2 and Pro Max come with the same kit

The AS2 only has one button: on/off. Again, attach the nozzle to the valve and long hold the on/off button. Press it again to start pumping. A light behind the on/off button will turn from red (empty) to amber (almost there) to green (done) and then the unit switches itself off.

I wasn’t as keen on this. You can’t set your preferred tyre pressure and you can’t tell how much charge is left in the battery. Although Cycplus does give a handy chart showing how many full pumps you get for various tyre pressures.

All three versions are noisy. You wouldn’t want to be using them first thing in the morning before setting off to work while the rest of the household are still asleep.

The waterproof bag is a nice addition. It’ll keep the pump safe from rain or sweat if you’re storing it in a jersey pocket.

Verdict

All three options are incredibly easy to use. They would be ideal for anyone with limited mobility in their hands. Or anyone who simply doesn’t want to stand by the side of a wet road on a cold and rainy day for longer than necessary.

The Cycplus AS2 Pro Max e-pump attached to a bike tyre valve and showing the three-bar battery level and tyre pressure, reading 8 PSI
The AS2 Pro Max in use

I even used them wearing full-fingered gloves and operated them with no problems. Although I’m not sure how you’d get your tyre off the wheel without taking off your gloves first.

I didn’t like the lack of a screen on the AS2, but its small size and lightness do make it ideal for any situations where size and weight are of the essence.

My favourite was the Pro. It seemed to combine the best of other two options with none of the drawbacks. It’s only marginally bigger and heavier than its smaller sibling but is smaller and lighter than the Pro Max while still letting you set pressure and see the battery charge.

The Pro Max is the heaviest and largest; this also makes it the costliest. But its size means the screen is slightly bigger which could be a consideration for glasses-wearers.

Other options

Michelin Portable Electric Bike Pump £59.99

Michelin Portable Electric Bike Pump

Bigger and heavier than all the AS2s, but it doesn’t cost as much and it has a clear, larger screen.

Rockbros Mini Electric Air Pump As1 Pro £99.98

Rockbros Mini Electric Air Pump AS1 Pro

E-pump with display screen and adjustable air pressure. It’s about the same size and weight as the AS2 Pro.

All information correct at time of publishing.

Our test promise

At Cycling UK and Cycle magazine, we are proudly independent. There’s no pressure to please advertisers as we’re funded by our members. Our product reviews aren’t press releases; they’re written by experienced cyclists after thorough testing.

Tech spec

AS2

Price: £68.11
Weight: 97g
Size: 65x46.5x28mm

AS2 Pro

Price: £83.41
Weight: 120g
Size: 70x49x28mm

AS2 Pro Max

Price: £98.72
Weight: 205g
Size: 81x60x32

Available from: Cycplus

Pros & cons

+ Very easy to use
+ Small and lightweight
- Noisy